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Bintel Glebe
Usually ready for pickup in 24 hours
Bintel 84 Wentworth park road, Glebe, 2073, NSW
Phone:(02) 9518 7255
Hours:
Monday9:30 am–5:30 pm
Tuesday9:30 am–5:30 pm
Wednesday9:30 am–5:30 pm
Thursday9:30 am–5:30 pm
Friday9:30 am–5:30 pm
Saturday9:30 am–4 pm
SundayClosed
Astronomy
579 products
579 products
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The ASI183MC, ZWO's most sensitive camera to date with a peak absolute Q.E. of 84% in mono made possible by a back illuminated sensor.
Introducing the ASI183 camera series, the most sensitivie cameras in ZWO history. Peak Q.E. of the mono sensor reaches 84%!
▶IMX183CLK-J/CQJ-J
Diagonal 15.86 mm Approx. 20.48M-Effective Pixel Monochrome/Color CMOS Image Sensor
▶High-Speed and High-Picture-Quality Rolling Shutter-Type Back-Illuminated CMOS Image Sensors
In the astronomic application field, Sony IMX183CLK-J (monochrome) and IMX183CQJ-J (color) sensors uses a very high sensitivity back-illuminated structure with high resolution 2.4 μm square unit pixel. The optical size is 1 inch.
Astrophotography Performance
The ASI183 cameras has a very large full well capacity(15000e) for such small pixel size, 1.6e read noise @ 30DB, and 12stops dynamic range @ Gain=0. The ASI183 cameras also utilize firmware features to minimize amplifier glow for maximum performance in astrophotography.
High Speed
Fast FPS can be used in solar and lunar imaging, as well as for live viewing/EAA.The high speed readout may also be used for real-time focusing, true lucky imaging of double stars and other small objects, planetary imaging of the major planets in the solar system, and much more.
10Bit ADC
5496×3672 19fps
3840×2160 41.04fps
1920×1080 80.10fps
1280×720 117.30fps
12bit ADC
5496×3672 19fps
3840×2160 36.12fps
1920×1080 70.48fps
1280×720 103.23fps
High QE
Sony’s back-illuminated Exmor R technology, giving it excellent Deep Sky performance. ASI183 QE peak reaches a remarkable 84%. In Ha channel, QE is still over 60%.
Having high QE means more of the light that enters your telescope and reaches the sensor is actually used. With 84% peak Q.E. and no less than ~50% within the visible spectrum, the ASI183 will utilize a high percentage of the light that reaches it, improving your signal quality.
USB 3.0 Port & ST4 Port
USB 3.0 Port: Provide 5Gb bandwidth to make it possible for ASI183 to run at 19 fps (12bit, normal mode) or 19 fps (10bit, high speed mode) at full resolution(20.18Mega).
ST4 Port: Can be used connect with auto guide port of mount, for guiding.
Mechanical Drawing
What is in the box?
ASI183 box includes all necessary cables, adapters, and manuals.
Camera Technical Details
| Sensor | 1″ CMOS IMX183CLK-J / CQJ-J |
| Sensor Diagonal | 15.9 mm |
| Resolution | 20.18 MP (5496 × 3672) |
| Pixel Size | 2.4 μm |
| Bayer Pattern | RGGB |
| Shutter Type | Rolling shutter |
| Exposure Range | 32 μs – 2000 s |
| ROI | Supported |
| ST4 Guider Port | Yes |
| Read Noise | 1.6 e⁻ @ 30 dB gain |
| QE Peak | 84% |
| Full Well Capacity | 15 ke⁻ |
| ADC | 12-bit |
| Interface | USB 3.0 / USB 2.0 |
| Adaptor | 2″ / 1.25″ / M42 × 0.75 |
| Dimensions | φ62 mm × 36 mm |
| Weight | 120 g (4.2 oz, without lens) |
Environmental Conditions
| Working Temperature | −5°C to 45°C |
| Storage Temperature | −20°C to 60°C |
| Working Relative Humidity | 20% – 80% |
| Storage Relative Humidity | 20% – 95% |
Max FPS at Full Resolution (10-bit ADC)
| Resolution | Max FPS |
|---|---|
| 5496 × 3672 | 19 fps |
| 3840 × 2160 | 41.04 fps |
| 1920 × 1080 | 80.10 fps |
| 1280 × 720 | 117.30 fps |
| 640 × 480 | 169.92 fps |
| 320 × 240 | 308.17 fps |
Max FPS at Full Resolution (12-bit ADC)
| Resolution | Max FPS |
|---|---|
| 5496 × 3672 | 19 fps |
| 3840 × 2160 | 36.12 fps |
| 1920 × 1080 | 70.48 fps |
| 1280 × 720 | 103.23 fps |
| 640 × 480 | 149.53 fps |
| 320 × 240 | 271.19 fps |
$240.00
The faster the focal ratio of your telescope, the greater your visual reward for using Tele Vue eyepieces. Tele Vue Plössls feature full multicoatings for greatest light transmission and contrast.
Blackened lens edges and internal anti-reflection threads tweak the last bit of contrast for maximum image detail. The sharper field focuses faint star light into perceptible points and allows those with undriven mounts to gaze longer before repositioning the image.
The 25mm, 20mm, 15mm, 11mm and 8mm Plössls round out the focal lengths for various observing from deep sky to planetary. They work best with Tele Vue Barlows or Powermates to effectively double the number of focal lengths in your collection.
Far superior to eyepieces usually provided as standard with most instruments.
Review
This is a very good medium high to high power eyepiece for observing lunar and planetary detail, resolving globular clusters, small planetary nebulae .
It has only 6mm of eye relief that will limit the field for eyeglass wearers.
This 8mm TeleVue Plössl was rated the best 8mm Plossl in a recent test report of 31 eyepieces in Sky & Telescope magazine.
Like all TeleVue Plossls it has filter threads to fit your filters and blackened lens edges as well as being parfocal.
Tele Vue 8mm Plossl Specifications
|
Focal Length |
8mm |
|
Barrel Diameter |
31.7mm (1.25") |
|
Apparent Field |
50° |
|
Eye relief |
6mm |
|
Field stop diamter |
6.5mm |
|
Weight |
45g |
Celestron EdgeHD 9.25 OTA
See the Universe in HD
EdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view.
True Astrograph Quality
Many optical designs that advertise themselves as "astrographs" actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today.
Improved Performance
Superior edge performance not only creates rounder, more pleasing stars, but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron’s StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.
Mechanical Features
In addition to EdgeHD’s optimized optical design, the telescope tube has been redesigned to make sure you get the most from your optics each and every night.
- Mirror clutches - Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor).
- Tube vents - Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 95-micron micromesh filter guaranteed to let warm air out without letting dust in.
- Fastar versatility - EdgeHD is the most versatile imaging telescope available today. At its native f/10, you can achieve the image scale necessary to capture the smallest of deep sky objects. Add the optional reducer lens—custom-designed for your size EdgeHD tube—and you can increase your field of view without sacrificing optical performance. A Barlow gives you added power for high-resolution planetary, lunar and solar imaging. All EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third party lens accessory for ultra-fast f/2 wide field imaging.
Individually Tested
Every EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. This “final acceptance test” confirms the EdgeHD will perform in the field and deliver high-quality astroimages.
Specifications
| Optical Design | EdgeHD |
|---|---|
| Aperture (mm) | 234.95 mm (9.25 in) |
| Focal Length | 2350 mm |
| Focal Ratio | 10 |
| Focal Length of Eyepiece 1 (mm) | 23 mm |
| Magnification of Eyepiece 1 | 102 x |
| Finderscope | 9x50 |
| Star Diagonal | 2" w/ 1.25" adapter |
| Optical Tube | Aluminium |
| Limiting Stellar Magnitude | 14.4 |
| Resolution (Rayleigh) | 0.59 arc seconds |
| Resolution (Dawes) | 0.49 arc seconds |
| Light Gathering Power (Compared to human eye) | 1127 x |
| Secondary Mirror Obstruction | 3.35 in (85 mm) |
| Secondary Mirror Obstruction by Diameter | 36% |
| Secondary Mirror Obstruction by Area | 13% |
| Optical Coatings | StarBright XLT |
| Optical Tube Length | 559 mm |
| Optical Tube Weight | 9.53 kg |
| Dovetail Compatibility | CGE Mount |
$109.00
Wind, an unsteady tripod, or even an accidental bump can disturb your image quality. Keep your telescope still while observing with these sturdy pads. Simply place your tripod legs on top of the pads to absorb shock and stabilize your telescope.
Celestron’s set of three Vibration Suppression Pads are manufactured using Sorbothane ® (available only in the USA) recognized worldwide as the ultimate material for attenuating shock, isolating vibration and damping noise. No synthetic rubber or polymer can dissipate energy as effectively.
- 3 vibration suppression pads go under your tripod legs to stabilize your telescope and prevent unwanted shaking
- Made with Sorbothane" only available in the USA. Cheap imitations use silicon which do not absorb shock and may melt in the Sun.
- Engineered by Celestron specifically to dampen vibrations
- Works on any surface
$79.00
The New T Tilter-II adds multiple screw holes to help connect to ZWO EFW (compatible to 2” EFW filter wheel).
Replaces original T-Tilter.
The new model offers more mounting options for you ZWO camera.
Dimensions
Main body:Diameter 78mm,11mm without the T2-T2 adapter
T2-T2 adapter:Thickness 2mm
Interface: T2 (M42*0.75 thread) each side
Main Uses
Mainly used to reduce newton ring when imaging ha-solar;
Also used to adjust the camera imaging plane by rotating the six nuts in the main body when the sensor plane is uneven
Suits all ASI cameras except ASI071, ASI2600 and ASI6200, which require the 68mm Tilter.
Connecting to Camera
Cooled camera: ASI294/ASI1600/ASI183/ASI533
Non-cooled camera:
ASI294/ASI1600/ASI183/ASI174
These cameras do not need to connect to the T2-T2 adapter
ASI178/ASI290/ASI224/ASI120
These cameras need to connect to the T2-T2 adapter first.
Mechanical Drawings
In the Box
T2 tilter x 1
T2-T2 adapter x 1
Hexagon wrench x 1
$149.00
Product Description
New ZWO Filter Drawer Nikon with a thickness of 29mm that can be used for carrying 2” filter and connecting ASI cooled cameras to Nikon Lens.
It is compatible with all ASI cooled cameras with 17.5mm back focus distance (except ASI GT series): 1600/294/183/071/533/2600/6200/2400
It can be used with all ZWO 2” filters, including the duo-band filter, narrowband filter, IR-cut filter, etc.
If you are using 2” filters from a third party, then please make sure they meet the requirements below.
Filters are very easy and convenient to install and pull out with the ability of double strong magnetic adsorption.
The thread of the interface: M42*0.75.
You will need to use an M54M-M42F adapter (0mm) to connect the filer drawer to the full-frame camera.
Connection method:
Connecting to ASI1600/294/183/533:
Connecting to ASI6200/2400/2600/071:
*The M54M-M42F adapter is needed when connected to full frame camera ASI6200/2400.
Mechanical drawing:
ZWO FD Nikon Specifications
70mm diameter*29mm(thickness)
M42*0.75 male (external) thread (camera side)
M48*0.75 female (internal) thread (filter end)
Suitable for 2-inch astronomical filters
What’s in the box?
Note:
External power supplies are needed for all ASl-cooled cameras. We recommend you use a 12V@3A~5A DC adapter (D5.5×2.1mm, center pole positive) or a lithium battery with 11-14V to power the camera. You can also use ASIAlR to power the cameras. Be aware that using a power supply out of this voltage range will probably lead to irreparable damage to the camera.
One Camera for All
The STARVIS 2 technology brings ASI585MC Pro more advanced imaging performance compared to other cooled cameras. Its high frame rate makes it not only suitable for DSO photography but also solar/lunar/planetary photography.
Jupiter -Jim Rivera
Moon -Christopher Schementi
NGC3372 ( eta Carina) -Simon Lewis
M42, NGC 1976 (Great Orion Nebula) -Simon Lewis
STARVIS 2
STARVIS 2 was developed by SONY and evolved from STARVIS. It is the latest technology with a wider dynamic range and super-high sensitivity beyond the human eye. Benefiting from it, ASI585MC Pro’s sensitivity and signal-to-noise ratio is greatly improved.
Large Full Well Capacity
The back-illuminated structure improves the camera’s full well capacity. Even with unbinned 2.9μm pixels, ASI585MC Pro has a full well capacity of 40ke-, nearly 3 times that of the last-generation sensor IMX485. A larger full well capacity gets the camera higher efficiency in collecting light, can effectively restrain the highlight area from being overexposed, and also can improve the signal-to-noise ratio.
Zero Amp Glow
ASI585MC Pro exhibits extremely clean dark frames with zero amp glow! No matter how long the exposure and how high the gain value is, you can easily get clean and smooth astro images!
Note: This feature is implemented directly at the hardware level, it does not require software control.
512MB DDR3
ASI585MC Pro uses a USB 3.0 interface, along with the built-in 512MB DDR3 cache, ensuring high-speed, smooth, and stable data transmission.
USB 3.0 Port & USB 2.0 HUB
USB 3.0 Port: Provides 5Gb bandwidth to allow ASI585MC Pro to run at 47fps at 8.29MP full resolution (10bit, high-speed mode).
USB 2.0 HUB: Can be used to connect various kinds of USB devices such as EFW, guide camera, and EAF.
Two-stage TEC Cooling
Thanks to the two-stage TEC cooling, ASI585MC Pro can lower the CMOS sensor temperature to more than 35 degrees Celsius below ambient temperature, which can greatly reduce dark current generation and sensor noise even during extended exposure times.
*The Delta T 35℃ is tested at 30℃ ambient temperature. It might get down when the cooling system is working for a long time. Also, as the ambient temperature falls, the Delta T would decrease.
Below is the dark current curve of ASI585MC Pro at the temperature from -20℃ to 30℃.
Camera Performance
Low read noise, High dynamic range
The camera has a built-in HCG mode, which can effectively reduce read noise at high gain and allow the camera to maintain the same high dynamic range as it does at low gain. When the gain reaches 252, the HCG mode will be automatically turned on and the dynamic range reaches a level close to 11bit. The read noise in this case can be as low as 0.9e. QE (Quantum efficiency)
Based on our testing results, the QE peak value of ASI585MC Pro is 91%. Connection Methods (Back Focus Distance: 55mm)
Connection to External Devices
Structural Dimension Diagram
In the Box
ZWO ASI585MC Pro is a perfect match for either of these APO telescopes
The Celestron PowerSeeker Accessory Kit is a great way to expand the enjoyment of your telescope. Inside the plastic, foam-lined carry case you’ll find these accessories:
- 15mm Kellner Eyepiece - 1.25”
- 9mm Kellner Eyepiece - 1.25”
- #80A Blue Filter - 1.25”
- #25 Red Filter - 1.25”
- Moon Filter - 1.25”
- Microfiber Cleaning Cloth
Eyepieces - The 15mm and 9mm eyepieces can be used in any telescope with a 1.25” focuser. Each eyepiece is fully coated to improve light transmission and protect the optics. The 15mm Kellner eyepiece offers a nice medium magnification view in most telescopes, and the 9mm provides high magnifications, great for the Moon and planets, especially when seeing conditions are good.
Filters - Coloured filters can be used to bring out certain details on a planet’s surface or its cloud structure. Both planetary filters, as well as the Moon filter, can be used on any 1.25” eyepiece with the proper filter threads, so they are very versatile. Just screw one onto your eyepiece of choice and slide it into the focuser.
- The #80A is a medium-blue filter that enhances the contrast of the cloud belts on Jupiter and the polar ice caps on Saturn. It also can be used to increase contrast on the Moon if you don’t mind the color shift.
- The #25 filter is a deep red color and is a good choice when you want to define the polar ice caps on Mars. It’s also fun to use this filter when observing Jupiter. The #25 Red filter blocks quite a bit of light coming through your telescope, however, so it is best used on bright objects with larger aperture telescopes.
- The Moon filter is one of the first accessories most new amateur astronomers buy, and for good reason! It helps block out a portion of the light the Moon sends into your eyepiece so that you can see details better. You can also try this filter on Venus; it helps you see which phase she’s in.
Cleaning Cloth & Case - Keep the microfiber cleaning cloth stashed in your PowerSeeker Accessory Kit case so that it will always be handy. It’s better to use a microfiber cloth on your optics than wipes or tissue, as it will not leave a residue, and can be reused. Remember to blow or brush any dust particles off of your optics before rubbing them with the cloth.
The black plastic carry case has die-cut foam inside to protect and cushion your accessories. Keep each one in its appointed place when not in use and you’ll keep them looking and performing like new.
$999.00
Celestron’s EdgeHD reducers feature a custom 4-element optical design engineered to maintain the flat-field performance of our award winning EdgeHD optical system. Unlike generic reducers, our premium reducers provide substantial back focus to accommodate an assortment of imaging accessories.
EdgeHD reducers offer high index optical elements, including extra low dispersion, exotic Lanthanum elements, which provide high contrast viewing while minimizing chromatic aberration. All air to glass lens surfaces feature multiple layers of coating for maximum light transmission and color correction and contain blacken edges to minimize internal reflection and maximize image contrast. Large diameter lens elements, up to 60 mm clear aperture, ensure that the optimized image circle remains at a generous 42 mm for use with large CCD sensors.
Incorporating computer assisted CNC machined aluminum housing, for precise spacing and alignment of optical elements, and threaded metal covers on the lens assembly to protect your investment from dust and scratches, our reducers offer you an outstanding mechanical design.
With the fastar option on all EdgeHD optical systems, coupled with the .7x reducer, your telescope becomes the most complete imaging system available in its price range today.
Performance
Design: 4-element optical layout designed specifically for the EdgeHD 9.25" to maintain the flat-field performance of the EdgeHD optical design
Maintains the same back focus as when used at f/10: Unlike generic reducers the EdgeHD .7x provides generous back focus to accommodate additional accessories and a wide variety of cameras. Also allows use of existing EdgeHD T-Adapters and other Celestron imaging accessories
One full F-Stop faster than f/10: Reduces the exposure time by one-half to capture the same brightness of object
Increase field of view by 43%: Better for capturing wide field images of larger galaxies and nebulae
Glass
Lanthanum Glass Elements: EdgeHD reducer uses "rare earth" Lanthanum glass elements for clear, high contrast viewing while minimizing chromatic aberration
Fully multi-coated lens elements: All air-to-glass surfaces have multiple layers of coating for maximum light transmission and color correction
Blacken edges: All lens elements have blacken edges to minimize internal reflection and maximize contrast
Full Frame Design
Threads directly onto the 3.25" threads of the EdgeHD optical tube: Reduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders
Clear aperture: 60 mm clear aperture lens optimized for a 42 mm image circle for use with large CCD sensors.
Mechanical Design
Machined aluminum housing: Computer assisted CNC machined aluminum housing for precise spacing and alignment of the optical elements.
Threaded metal covers for both ends of the lens assembly: To protect your investment from unwanted dust and scratches.
Versatility
Fastar compatibility and f/2 imaging with optional accessory: the EdgeHD is the most complete imaging system in its price range.
Conduct dozens of your own experiments with the 28 Piece Celestron Microscope Kit. Includes a metal bodied microscope with 3 objective lenses (100x, 600x, and 1200x). Examine the 5 prepared slides or create your own using the 7 blank slides and cover slips. Also includes fun accessories like a 2x magnifying glass, plastic scalpel, and more.
- Beginner set with metal bodied biological microscope
- Blow molded, rugged carry case for portability and protection
- 3 objective lenses for high power viewing - 100x, 600x, and 1200x
- 7 blank slides, 5 prepared specimen slides, and 7 slide cover slips and labels
- Multiple lab accessories to get you experimenting right away:
- Plastic scalpel
- Tweezers
- Pointer
- 2x magnifier
- Sea salt samples
$65.00
ZWO EAF Bracket C11-C14 for Celestron Scopes
(this part is defined as optional accessories for ZWO EAF)
This bracket is designed to work with C11, C14 Celestron SCT scopes. You can directly connect it to the scopes.
The ZWO EAF Bracket C11-C14 is CNC milled from an aircraft graded aluminium block with an anodised finish.
Takes 15minutes to fit.
Fitting hardware supplied
Installation instructions included
Whats in the box?
Flexible coupling x1
Motor bracket x1
M4-8mm x2
M3-35mm x3
M4-35mm x3
Hand control and Temperature Sensor sold separately
ZWO ASI6781MC
ZWO ASI678MC adopts Sony's Latest generation sensor IMX678 with excellent near-infrared response. With the advantages of Large full well capacity, high dynamic range and low readout noise, this camera has been tested and found to have perfect performance in planetary imaging, solar and lunar imaging. Clear in low light
Thanks to the back-illuminated sensor structure and advanced pixel techno[ogy, the camera has very low readout noise and an ultra-high sensitivity. Especially in Low light conditions, the camera performs very well and is able to capture very clear images of celestial objects. STARVIS 2
ZWO ASI678MC can be regarded as an upgrade of ASI178MC. It adopts the latest SONY IMX678 sensor with advanced STARVIS 2 technology. Compared to ASI178MC, this camera features zero amp glow, lower readout noise and higher sensitivity. The dark current noise is greatly decreased; the performance of near-infrared is greatly improved. USB 3.0 & 256M DDR3 Memory
The camera is equipped with a USB 3.0 transmission interface and a built-in 256MB DDR3 cache to ensure stable and secure data transmission. Under Long exposure, it effectively avoids frame dropping and greatly reduces the glow effect caused by slow reading speed. Upgraded Model
The ZWO ASI678MC is an upgraded product of the ASI178MC. Compared to the ASI178MC, the ASI678MC has lower read noise, lower dark noise, and no amp glow. No Amp Glow ZWO ASI678MC exhibits zero amp glow, no matter how long the exposure and how high the gain value is. Since it is implemented directly at the hardware level, it does not require software control. HCG Mode
The camera has a built-in I-ICG mode, which can effectively reduce readout noise at high gain. This allows the camera to maintain the same high dynamic range as it does at [ow gain. When the gain is 182, the I-ICG mode is automatically turned on. The readout noise is as low as 0.8e, and the dynamic range can still reach a level close to 12bit. Quantum Efficiency
The QE curve and readout noise are very important parameters to measure the camera's performance. Higher QE and tower readout noise are necessary to improve the image signal-to-noise ratio. Dark Current Noise
ASI678MC has much lower dark current noises than ASI178, bringing it has better image signal-to-noise ratios. If we compare the darks frames captured with these two cameras, it can be easily found that the frame from ASI678 has much Less noise and rooks much smoother. SKU: ZWO-ASI678MC
Model
ASI678MC
ASI178MC
Color or Mono
Color
Color
With or Without
With
Without
Format
1/1.8"
1/1.8"
Resolution
3840*2160
3096*20
Pixel Size
2ųm
2.4ųm
Readout Noise
0.6-2.7e
(1e@8db
QE Peak
83%
80%
Full Well
11.27ke
15ke
ADC
12bit
14bit
Backfocus
12.5mm
12.5mm
MAX FPS
47.5 fps
60 fps
Diagonal
8.86mm
8.95mm
$1,120.00
Tele Vue's Paracorr Type II is the most versatile coma corrector available for Newtonian telescopes.
Concept: I have built Newtonian reflectors since my high school days and still enjoy observing with Dobsonians. Knowing how the Nagler eyepiece complemented fast Dobsonians and Newtonians by removing eyepiece induced astigmatism, I now became intolerant of the inherent defect of coma in a parabolic mirror.
Paracorr — more stars, sharper stars, more time to observe.
In 1989 I decided to try to achieve the same field quality for parabolas as reached by my Nagler eyepiece and 4-element refractor designs. Existing coma correctors seemed to be limited in color correction, spherical aberration and convenience in use. Paracorr (parabola corrector) is completely color-free, center and edge, and installs like a Barlow. In 2009, we decided to greatly improve the correction with the Paracorr Type 2 design so that new, large, Dobs as fast as f/3 could become practical. Ladderless Dobs with larger fields herald a revolution. Read the reviews and story, The New Dobsonian Revolution, in Astronomy magazine. The new Paracorr Type-2 is a combination visual and imaging system designed by Paul Dellechiaie and our staff. Let the revolution begin. — Al Nagler
An optical chain is as good as its weakest link. With the development of 82 degree Nagler and 100+ degree Ethos eyepieces, Tele Vue offers the largest, flattest and best corrected visual fields in the industry. Combine the Nagler/Ethos revolution, Dobsonian revolution and Paracorr for the ideal mating for spectacular wide and sharp "spacewalk" observing.
Life without Paracorr
Coma makes stars look like blurry comets whose tails point out radially from the center of the field. The faster your scope's speed, the worse the effect. All parabolic mirrors used in Newtonian reflecting telescopes are limited in field sharpness due to coma. Even a perfectly made 13" f/4.5 parabola has only about 0.1 degree diffraction limited field.
Previous attempts to correct for coma have been limited in usefulness. Some correctors were designed mainly for astrophotography, some required difficult installation in the focuser's draw tube. Dedicated coma correcting eyepieces were another approach. However, these were limited to 50 degree apparent fields and would orphan your existing eyepiece collection.
Life with Paracorr Type-2
Paracorr is a universal corrector that tightens and intensifies star images on all f-ratios down to f/3! (see spot size graphs: PDF or JPG) without adding any false color or spherical aberration! You no longer have to constantly shift a Dobsonian to keep objects centered for sharp viewing. Using a Tele Vue eyepiece, put M-13 at the edge of the field and enjoy fully resolving its beauty as it drifts across your view.
Paracorr is easy to use. It slips into your focuser, just like a Barlow. To minimize focuser in-travel, due to additional length, a mild 15% Barlow effect was designed into Paracorr to effectively push the focus out. Paracorr is recommended for use with all Tele Vue eyepieces because our Plössls, Radians, Panoptics, Naglers, Ethos and Delos eyepieces achieve higher levels of aberration correction than competitive models. However, Paracorr is also compatible with other eyepiece makes.
Try Paracorr on your "DobNewt." We think you'll agree that the revolution is complete.
Paracorr Type II Eats Coma
Paracorr can be used with both 2" and 1¼" eyepieces. For visual use, slip Paracorr into your focuser like a Barlow lens, and your eyepiece into Paracorr. 1¼" eyepieces will make use of Paracorr's special low profile 1¼" reducing adapter. Paracorr is threaded for 2" filters.
Astrophotography with Paracorr Type II
Paracorr also works with DSLR and CCD cameras. Just unscrew the lens assembly from the Tunable Top and attach appropriate threaded accessory tubes and camera mounts. The Paracorr uses TeleVue's Imaging System adapters utilizing the 2.4" thread at the top of the Paracorr barrel.
Optimizing the Coma Correction by Using Paracorr's Tunable Top
As you've read, all Newtonian / Dobsonian telescopes can benefit from using a Tele Vue Paracorr (Parabola Corrector) to eliminate coma in the image. One aspect to optimizing this correction is the distance of the eyepieces focus point (field stop location) to the last surface of the Paracorr lens (within a small +/- tolerance of course). Typical eyepieces used with fast Newtonians can have field stop locations differing by as much as half an inch. To accommodate for the differences, we developed the "Tunable Top."
The "Tunable Top" permits optimized aberration control for all Tele Vue eyepieces and many others, by simply loosening a screw and rotating the Tunable Top. The eyepiece barrel height raises and lowers, allowing you to maintain the proper field stop to Paracorr lens distance. For your reference, here is a recommendation guide for choosing the best setup for various Tele Vue eyepieces to get optimum correction:
Recommended Eyepiece Position Chart and Dimensions for VIP-2010 (Paracorr Type-2).
$499.00
The professional-level Celestron LCD Digital Microscope II is a biological LCD microscope at an affordable price. With fully achromatic lens objectives, a mechanical stage, 3.5” full color TFT screen and 5MP CMOS sensor, the LCD Digital Microscope II allows for high-resolution imaging of specimen slides. The microscope even includes a 1GB SD card, enough storage to capture over 600 high-resolution images for lab reports, papers, lesson, and more.
Great for the discriminating professional or serious hobbyist, the LCD Digital Microscope II is ideal for labs, schools and research institutions.
Included Accessories
- 1GB SD card
- Dust cover
- Rugged canvas carrying case with shoulder strap
- 5 prepared slides
- 4 plug, multi-country AC adapter
| Type of Microscope | LCD Desktop |
| Head | 180° roatatable head w/3.5" TFT LCD Screen |
| Nosepiece | Triple with click stop |
| Objective(s) Type | (3) Achromatic objectives on turret |
| Objective(s) Standard | DIN 35 RMS |
| Objective(s) Magnification | 4x, 10x, 40x |
| Objective(s) Thread | WJ 4/5" x 1/36" |
| Focus Type(s) | Course Focus |
| Focus Travel (per rotation) | 0.7mm to 35.3mm (.027" to 1.39") (est.) |
| Magnification Range | 40x, 100x, 400x | Up to 1600x with digital zoom |
| Illumination Type | LEDs |
| Illumination Position(s) | TBD |
| Illumination Adjustability Mechanism | Adjustable wheels at base |
| Power Source | Universal 100 to 240V, 50/60 hz multi-country plug | (4) AA (optional) |
| Battery Options | Yes (4AA) |
| Stage | Fully mechanical with metal clips, 88mm x 88mm (3.5" x 3.5") | With Filter wheel | Red, blue, green | 1mm, 3mm, 6mm apertures |
| Condenser Type | Aplantic |
| Condenser N.A. | N.A. 65 |
| Stage Diaphragm | Multiple on wheel |
| Eyepiece Type | CMOS Sensor in lieu of eyepiece |
| Sensor Size | 5MP | 1/2.5" |
| Pixel Size | 2.2 μm |
| Screen type | High Definition TFT LCD Screen | 480 x 272 pixels | 262K colors | Brightnes 400cd/m2 |
| Screen Size | 3.5" |
| Memory Type | SD Card |
| Memory Size | 2G SD included | Supports up to 32G |
| Port(s) In | AC Plug (power) | SD Card slot (32Gmax) |
| Port(s) Out | Video/ TV out | USB 2.0 |
| AC Adapter | 5-6V DC, 200-1000mA tip positive electrical input. Jack should be 5.5mm (.21") OD, 2.1mm (.08") ID and 12.5mm (.49") long |
| Still image capture resolution | 2592 x 1944 | 2112 x 1188 | 1538 x 864 | 640 x 480 |
| Video resolution | VGA (640 x 480) |
| Shutter trigger position | On LCD Screen |
| Software | Internal Firmware built in |
| Microscope Dimensions | 170mm x 140mm x 330mm (6.7" x 5.5" x 13") |
| Microscope Weight | 56 oz (1600g) |
| Included Accessories | 2GB SD Card | USB 2.0 Cable (data transfer) | 5 Prepared Slides |4 plug, multi-country AC adapter | Dust Cover | Carrying Case |
- Professional digital biological microscope
- Full color 3.5" TFT LCD screen with onboard software
- Built-in 5MP digital camera captures high-resolution images and 30 fps SD video of your specimen
- Fully adjustable mechanical stage for easy slide movement
- 180° rotating head for easy sharing of images
- Rotating objective lens turret 3 lens powers: 4x, 10x, and 40x
- Camera sensor acts as 10x eyepiece lens, yielding 40x, 100x, and 400x powers
- 4x digital zoom for magnification up to 1600x
- Measuring reticle for comparing specimen sizes
- 2GB SD card included so you can save up to 620 high-resolution images
- TV output for display on large monitors for classroom or lab environment
- Included accessories: 1GB SD card, dust cover, rugged canvas carrying case with shoulder strap, 5 prepared slides, 4 plug international AC adapter
SKU: 44341
$1,930.00
Tele Vue Ethos 21mm Specifications
|
Focal Length |
21mm |
|
Apparent Field |
100° |
|
Eye Relief |
15mm |
|
Effective Field Stop Diameter |
36.2mm |
|
Barrel Size |
2" |
|
Weight |
1020g |
Introduced at the 2007 Northeast Astronomy Forum, Tele Vue once again broadened the amateur astronomer's perspective on the universe with: 100° of pure Tele Vue quality. The field area of this new eyepiece is more than 50% larger than an 82° field. The Tele Vue Ethos is essentially multiple eyepieces, delivering the true field size of a longer focal length, narrower apparent field eyepiece with the benefits of higher power and darker sky background.
We invited NEAF attendees to take a look and see the universe the way we think it was meant to be experienced, with a field of view incredibly wide and sharp! We were very pleased indeed by the response and validation of our design goals.
Related Links
•Eyepiece Distortion
Technical reference on rectilinear and angular magnification distortion.
•Majesty Factor
Compare eyepieces by quantifying contrast, power, and apparent field.
This dovetail bar is easily mounted to the top of the Rowe-Ackermann Schmidt Astrograph 8 with the included hardware. Once installed it will allow you to attach any astronomy accessories that use CGE or Losmandy D-series dovetail plates.
$99.00
ZWO 90mm Holder Ring for ASI Cooled cameras
90mm diameter with dovetail base
Currently compatible with ASI 2600MC Pro and ASI6200MM/MC Pro cameras.
Note:
1. Cameras with large format like ASI094MC Pro, ASI128MC Pro and ASI071MC Pro require the D86 Holder Ring (80mm diameter).
2. D78 Holder Ring for ASI Cooled cameras is compatible with following ZWO cameras:
ASI1600 Pro cameras, ASI183 Pro cameras, ASI294MC Pro, ASI178 Cooled cameras, ASI174 Cooled cameras and ASI385MC cooled.
3. Loosen the M6 screw on the holder ring, you can mount the camera onto the tripod easily.
New update to the Celestron StarSense Autoguider
Key features:
- Automatic alignment: Aligns your telescope to the night sky in about three minutes with no user input, thanks to Celestron’s patented StarSense technology.
- Precise GoTo: Boosts the pointing accuracy of your Celestron mount, placing celestial objects in the centre of the field of view of high-powered eyepieces and small imaging sensors.
- Autoguiding: Tracks celestial objects accurately for pinpoint stars in long exposure astro images, eliminating the need for a separate autoguiding camera, guidescope, and computer.
- Assisted polar alignment: Walks you through an easy, automated process to dial in the best polar alignment.
- High-quality 4-element optical design: Features a unique optical design by famed optical designer Mark Ackermann, with sharper optics than other mini-guidescopes.
- NEW! Included dew shield: Helps prevent dew from forming on the optics, also acts as a lens shade to block stray light.
- Multiple ways to control: Works with your NexStar+ hand control, CPWI telescope control PC software, or the SkyPortal Powered by SkySafari™ app (for WiFi enabled mounts)
- Advanced VX
- CGX-L
- CPC, CPC DX
- NexStar Evolution
- NexStar 6SE & 8SE telescopes
- CGEM II
- CGX CGEM / CGEM DX
- CGE Pro
NOT compatible with these Celestron mounts
- NexStar SLT
- Astro Fi
- SkyProdigy
- LCM series
- NexStar 4SE & NexStar 5SE Advanced CG-5 GT
| Lens Design: | Double-Gauss |
| Aperture: | 28mm |
| Focal Length: | 120mm |
| Focal Ratio: | f/4.3 |
| Number of Elements: | 4 |
| Coatings: | Fully Multi-Coated |
| CMOS Image Sensor: | Sony IMX462LLR-C, monochrome, back-illuminated |
| Sensor Size: | 6.46mm diagonal |
| Pixel Size: | 2.9μm x 2.9μm |
| Number of effective pixels: | 2.13m |
| Onboard computer: | Integrated Computer-On-Module |
| Primary Arm® core: | 2x Cortex® -A53 up to 1.4 GHz |
| Secondary Arm® core: | 1x Cortex-M7 up to 600 MHz |
| RAM: | 512Mb |
| ROM: | 4Gb |
| GPUL | GC7000UltraLite |
| Ports: | AUX and USB-C |
| AUX: | For connection to Celestron mounts |
| USB-C: | For PC connection for live view, USB 3.1 |
| Housing: | Aluminium with plastic covers, threaded for 2" filters |
$44.00
How to Use
To use this T-Ring, place the E-Mount T-Ring on your Sony mirrorless camera. Just like changing a lens, line up the T-Ring to your camera’s lens mount. Push it in and turn until you hear a click. The T-Ring has a sturdy bayonet flange that locks for a secure fit. Once you attach the T-Ring to your camera, you’re ready to connect your telescope. The telescope side of the T-Ring has threads that accept a variety of camera adapters, including the Celestron T-Adapter. The adapter you choose depends on the type of photography you wish to do.
Body
The Sony E-Mount 42mm T-ring is machined aluminum black anodized. The internal surfaces are blackened and glare-threaded to provide the highest contrast. The T-Ring has a ribbed surface for a secure grip while threading/unthreading. The Sony E-Mount 42mm T-Ring is compatible with M42 x 0.75 (T-Thread) camera adapters.
A T-Ring is one of the first accessories you will need to take pictures through a telescope or spotting scope. If you have a Sony E-mount mirrorless camera body, the Celestron E-Mount T-Ring is the one for you.This T-Ring fits Sony E-mount mirrorless cameras only. It will not work with other Sony A-mount camera bodies without adding a Sony adapter to convert those cameras to E-mount.
$840.00
Review
An excellent premium quality low power eyepiece. It is ideal for observing large emission and reflection nebulae, Supernova Remnants and large open star clusters.
It is very well suited to large f/4.5 Dobsonians giving 6mm exit pupil. Is a great low power eyepiece in short focal length refractors, for example, with the TV 102, it gives 31x and a true field over 130 arc minutes.
It has 16mm of eye relief and can be used by eyeglass wearers with no vignetting of the field. Images are sharp right to the edge of the field.
This is a lot of eyepiece so its heavy weight may cause some minor concern in Dobsonians. One of the favourite eyepieces of Bintel's Technicians.
Check out the rest of the Panoptic range.
Specifications
| Focal length: | 27mm |
| Barrel Diameter | 50.8mm (2") |
| Apparent Field | 68° |
| Eye relief | 19mm |
| Field Stop Diameter | 30.5mm |
| Lens elements/grouping | 6/4 |
| Weight | 450g |
$49.00
The Celestron Prepared Slides - 25 Piece Box offers a wide assortment of specimen slides covering insect parts, plant parts, animal parts, etc.
| Slide Material: | Glass, Clear |
| Slide Design: | Flat Plate |
| Slide Quantity: | 25 |
| Slide Shape: | Rectangular |
| Slide Size: | 25mm x 75mm (1" x 3") |
| Slide Type: | Prepared |
| Slide Box Material: | Wood (Bass) |
| Slide Labels: | Paper, White with Black Text in English |
| Slide Specimens Included in Kit: | 1. Penicillium,W.M. | 2. Rhizopus Sporongia,W.M. | 3. Chlamydomonas,W.M. | 4. Pine Leaf,C.S. | 5. Leaf of Winter Jasmine,C.S. | 6. Corn Root Tip, L.S. | 7. Vicia Faba Young Root C.S. | 8. Corn Stem C.S. | 9. Corn Stem L.S. | 10. Cucurbits Stem C.S. | 11. Cucurbits Stem L.S. | 12. Basswood Stem C.S. | 13. Basswood Stem L.S. | 14. Pollen W.M. | 15. Daphni Sp W.M. | 16. Hydra W.M. | 17. Paramecium W.M. | 18. Rotifer W.M. | 19. Honey Bee Mouth Parts W.M. | 20. Cardiac Muscle Sec | 21. Skeletal Muscle L.S,C.S. | 22. Small Intestine C.S. | 23. Spinal Cord C.S. | 24. Motor Neurous Cell W.M. | 25. Blood Smear Human |
$224.00
The new ZWO LRGB Filters are designed to approximately equalize the flux of ASI1600 mono sensor
Better transmission, Better coating, Better color separation
Technical Parameter:
Name: ZWO New LRGB Filters Optimized for ASI1600(4 filters)
Size: 1.25″
Thickness: 5.5mm+2.5mm(thread)
Thread: M28.5*0.6
the RGB color combine weights will be approximately 1:1:1
- Fine-optically polished to ensure accurate 1/4 wavefront
- more than 92% transmission at passband
- Infrared wavelength 700-1100nm cut-off
- Precision off-band blocking
- Multi-layers anti-reflection coating
- Small spectral “gap” to minimize effect of light pollution
- More parfocal – thickness 1.9+/-0.03 mm
here is the the transmission curve
Product Description
ASI294MM-P is a back-illuminated, 4/3” format, 14-bit ADC camera with 4.63um pixels *(. It is the mono version of ASI294MC Pro, one of the top selling cameras from ZWO. It has an impressive 66ke- full well capacity and 4144*2822 big resolution.
Not only does it have a very high QE value with a peak at about 90%, but feature an ultra-low readout noise of 1.2e. If you are seeking for a small-format mono camera for astrophotography, then ASI294MM-P gonna be your ideal choice.
14-bit ADC and 13stops dynamic range
ASI294MM Pro has very similar parameters as its color version. Both have the 14bit ADC and a high dynamic range of 13 stops, which is even higher than that of ASI1600MM Pro camera.
Unlocked Bin1 Mode
Yet another perk of the ASI294MM Pro is that the pixel size is switchable – the default setting is Bin2, but you can switch to Bin1 anytime in your astrophotography software. This changes the pixel size into 2.3um and increases resolution to 8288×5644. This is what we called “Unlocked Bin1 Mode”. The ability to unlock bin1-mode was a popular request from our customers. Of course we listened to you and worked quickly to make it possible.
Unlocked Bin1: 12bit ADC, 2.3um pixel size, 47 megapixels, 8288*5644 resolution, 14k full well capacity.
Bin2: 14bit ADC, 4.6um pixel size, 11.7 megapixels, 4144*2822 resolution, 66k full well capacity.
Backlit Sensor
The back-illuminated CMOS sensor improves sensitivity and noise reduction – the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination. It has retained the advantages of CMOS image sensors such as low power consumption and high-speed operation.
With a conventional front-illumination structure, the metal wiring and transistors on the surface of the silicon substrate that form the sensor’s light-sensitive area (photo-diode) impede photon gathering carried out by the on-chip lens. A back-illuminated structure minimizes the degradation of sensitivity to optical angle response, while also increasing the amount of light that enters each pixel due to the lack of obstacles such as metal wiring and transistors that have been moved to the reverse of the silicon substrate.
Camera Performance
Large well depth capacity, low read-out noise and high dynamic range.
The full well capacity of 66387e of ASI294MM Pro is near the top of all ASI DSO cameras. It ensures a very high dynamic range up to 13stops that will greatly reduce overexposure probability and help gain richer color gradation.
When the gain value is 120, the magical HCG high gain mode is turned on, the readout noise will be largely decreased (as low as 1.2e), and the dynamic range is basically unchanged.
Reliable Mechanics
There are four screws on the camera that seal the sensor chamber. This kind of design has been extensively tested and is very stable. Even when used in higher humidity environments, ASI294MM Pro will still work fine without dew problems.
The anti-dew heater power is around 5W and can be turn off in software to save power.
QE Value
As ZWO’s latest BSI (backside illuminated type) mono camera, ASI294MM Pro has very high QE performance, not only higher than its color version, but even ASI1600MM Pro. It is estimated that the QE peak value is about 90%.
ASI294MM-P vs ASI1600MM Pro
Two-Stage TEC Cooling: Ultra-Low Dark Current
ASI294MM Pro uses two stage TEC cooling that can lower the CMOS sensor temperature to 35c~40c below ambient, which can greatly reduce dark current generation and sensor noise even with extended exposure times.
The unique dark current suppression technology can even further reduce dark current noise. When it’s cooled to -20℃, the current noise can be as low as 0.0022e/s/pix, which is completely negligible!
Please notice that the camera needs to be connected to an external 12v power supply to implement the cooling function. We recommend you use 12V@3A DC adapter (5.5*2.1mm, center pole positive) or lithium battery with 11-15V to power the camera.
USB3.0 & 256M DDR3 Memory
The ASI294MM Pro is equipped with a USB 3.0 transmission interface and a built-in 256MB(2Gb) DDR3 cache to ensure stable and secure data transmission. Under long exposure, it effectively avoids frame dropping and greatly reduces the glow effect caused by slow reading speed.
Notice: For the possible amp glow that shows on your images, please refer to this tutorial: “What is Amp-glow and how do I manage it? “
https://astronomy-imaging-camera.com/faq
Mechanical Diagram
What’s in the box?
The best solution of 55mm back focus length
$850.00
Tele Vue's Delos 10mm is a short to medium focal length eyepiece that will deliver amazing detail. Importantly though it still achieves a generous 20mm eye-relief and wide 72° apparent field of view. Amazing in well corrected refractors with short to medium focal lengths. The Delos 10mm is suitable for any focal length telescope. Some of the shorter focal length Delos eyepieces may provide too much power in long focal length Cassegrains. For example in an 8" f/10 telescope the 10mm Delos provides 200x magnification with eye-relief galore!
There is a good chance the TeleVue Delos will be seen as the ultimate combination of performance, viewing comfort and price. If you've been keeping a spot in your case for an affordable, premium eyepiece, you should consider a Delos - you won't be disappointed! Lessons learned from the tremendously successful Ethos series were applied to develop this long eye-relief, 72° apparent field of view eyepiece line.
The Delos 10mm for a standard 1.25" barrel diameter making it suitable for almost any telescope or even bino-viewers!
Tele Vue Delos 10mm - Specifications
- Model # EDL-10.0
- Focal Length 10mm
- Barrel Size 1.25"
- Apparent Field of View 72°
- Eye Relief 20mm
- Weight 408g
- Field Stop 12.7mm
Background:
In 2011 Tele Vue introduced the Delos, mid-to-short focal length line of 20mm eye-relief, 72° apparent field of view eyepieces. Every optical, mechanical, and ergonomic aspect was rethought to achieve reference-standard performance for any visual application.
The Delos was conceived as a narrower field Ethos. Reducing the field to 72° allowed freedom to increase eye-relief, while controlling pupil aberrations, all without making the eyepiece too large. With Ethos performance standards as benchmarks, the Delos design achieves full field sharpness, virtually perfect f θ (theta) distortion mapping, and color neutrality. Image fidelity is maximized utilizing glass matched multicoatings and anti-reflection surfaces throughout the eyepiece.
Contrast is further enhanced with a new, continuously adjustable height eyeguard system that can be locked in any position. Since the Delos eye-lens measures a quite large 35mm in diameter, preventing stray light from reflecting off the first surface and extraneous light from entering your eye pays off in a nice increase in perceived contrast. The eyeguard's sliding action allows for positioning the soft rubber eyeguard at the ideal height to suit the observer's preference. Indicator marks on the eyepiece body are handy reference guides for setting your perfect position. The eye-guard can also rotate for Dioptrx users.
Awards - Delos 6mm and 10mm
Reviews
Sky & Telescope Hot New Product for 2012 Award
More Than Expected (Delos 6 and 10mm)
And while the 20 mm of eye relief make them attractive for those was observe wearing eyeglasses, it was the "distinctly pleasurable" observing experience that most impressed our reviewer. When it comes to eyepiece design, The Delos seems to have hit all the sweet spots.
— Editors. "Hot New Products for 2012". Sky & Telescope (January 2012). p.39.
Excerpt from ATT review of Delos 6- & 10-mm eyepieces:
Wide-Field Eyepieces That Pack a Planetary Punch
With the Delos, the eyepiece simply "disappears" and allows the observer to observe. I could find nothing whatsoever to complain about; the "twist and tighten" eye relief adjustment feature is the best I've ever seen in any eyepiece, and the optics are essentially perfect. Tele Vue somehow always finds a way to continuously improve upon their eyepieces and the Delos is certainly no exception. Bottomline: If you're in the market for a planetary eyepiece, you owe it to yourself to consider the Tele Vue Delos.
— Erik Wilcox. "Tele Vue Delos". Astronomy Technology Today (Nov-Dec 2011). Full Review.
Review of the 6mm & 10mm Delos from Astronomy Magazine, December 2011
- Contrast was excellent - right up there with some of the best planetary eypeices I've ever used.
- I searched but saw no internal reflections or scattering in either eyepiece.
- The flat field the Delos eyepieces produce really made star fields pop. Open clusters epitomized the old standard "diamonds on velvet". Stars on and off axis showed no sign of astigmatism.
- Tele Vue has constructed an eyepiece that stands with the best deep-sky and planetary eyepieces on the market.
- — Trusock, Tom. "Astronomy tests Tele Vue's new eyepiece line". Astronomy Magazine (December 2011). Full Review.
Excerpts from Sky & Telescope, June 2011, review of Delos eyepieces:
WHAT WE LIKE:
Essentially perfect optics
"Immersive" observation experience
WHAT WE DON'T LIKE:
I spent several nights viewing the Moon, Saturn, stars and nebulae with a variety of telescopes … .
The Delos eyepieces are "easy to look through … . They have flat fields, delivering absolute pinpoint stars from edge to edge with no hint of color aberration. The view, especially during the daytime, is very pure with no noticeable color tint. And there wasn't a hint of ghosts or reflections, even with the brightest stars".
"What caught me a bit off guard, however, was something that's best described as the observing experience. It was distinctly pleasurable."
"I have the sensation of looking out of a circular window rather than into an eyepiece."
— di Cicco, Dennis. "Tele Vue's New Delos Eyepieces". Sky & Telescope (June 2011). p. 58, 59.
$679.00
The whole sky. 840 grams.
A precision astro camera, an automatic tracking mount, and an intelligent control system in a body that weighs just 840g. Point, shoot, and the universe is yours.
Fits in a daypack. Reaches deep space.
At 840g the DWARF mini is the lightest smart telescope made. It rides in a camera bag and sets up on any flat surface. Backyard, lakeside, or a dark-sky site two hours from town, it goes wherever the clear weather is.
This is not a simplified telescope. It is a whole new way to explore the universe.
From bag to first image in three minutes.
Power on, connect your phone, pick a target. The mount finds north, focuses, and locks on by itself. There is no polar scope to align and no star charts to learn before you shoot.
It finds the target, then keeps it.
Tap an object and the DWARF mini slews to it, focuses with precision autofocus, and tracks it across the sky. Plate-solving checks its own aim against the real star field, so framing stays accurate all session.
90-second frames with round stars.
Switch to EQ mode and the mount compensates for Earth's rotation. You get longer single exposures with no trailing and no cropping, which means cleaner signal on faint nebulae and galaxies.
Cut city glow without bolting on glass.
An internal wheel carries a dark-frame filter, a 430–690 nm astro filter, and a dual-narrowband Hα / O III filter. The narrowband filter pulls nebula detail out of moonlit and light-polluted skies.
Frame any angle you like.
The lens barrel turns 225° and the gimbal rotates a full 360° without stops. Compose by hand, in the app, or with the on-screen joystick, and track a target from any perspective you choose.
A finished image in about three seconds.
Stellar Studio runs inside the app. It corrects star points, removes noise, and lifts nebula detail with a single tap. No laptop and no paid software needed to share a clean result.
A Sony IMX662 at the heart of it.
The 1/2.8-inch IMX662 sensor uses large 2.9μm pixels to gather light cleanly with low noise. RAW capture preserves every bit of detail for editing, so faint deep-sky structure survives the stretch from data to finished photo.
The cosmos, finally within reach.
The Milky Way, the Moon, the Sun, star trails, and deep-sky nebulae. One small instrument, a different target every clear night.
Two lenses. Find fast, frame tight.
A wide-angle lens locks on targets quickly and captures the Milky Way and star trails. The telephoto lens then takes over: a 30mm f/5 optic with six apochromatic elements and 1,016mm full-frame equivalent reach for sharp, close detail.
Set the target and walk away.
Schedule a session and let it run unattended. The mini collects and stacks frames on its own, so you can wake up to a finished image of Andromeda already sitting in the gallery.
Build one image across many nights.
The mini merges exposures gathered on different nights into a single deeper result. Every clear evening adds signal, so a faint galaxy keeps improving over a week instead of one short session.
Dark, bias, and flat fields, handled.
Capture proper calibration frames in the app to remove sensor noise, vignetting, and dust shadows. This is the step that takes a shot from captured to captured correctly, and the mini automates it.
Keep the good frames, drop the rest.
Wind gusts and passing cloud spoil the odd frame. Review each one and remove it before stacking, so only clean, well-aligned data makes it into the final image.
Catch the rare moments too.
The mini handles far more than nebulae. Shoot ISS transits across the Sun and Moon, solar and lunar eclipses, and stitch wide-field mosaics that reach well beyond a single frame.
Take the RAW data as far as you like.
Beginners get a finished image in the app. Experienced imagers can export RAW files to Photoshop, Siril, or PixInsight for full manual control. The mini grows with your skills rather than capping them.
Made to explore, and to share.
Never a one-trick instrument.
The Milky Way, the Sun, the Moon, star trails, and deep-sky nebulae are all within reach. Each clear night is a new subject, so the mini stays interesting long after the first image.
Sign your work before you share.
Add a personal watermark and caption to every image straight from the app. Post a finished shot to social media with a tag that is unmistakably yours.
Build a bigger sky together.
Team up with friends or a local astronomy group to piece together a vast deep-sky mosaic. Several minis can contribute frames to one shared, larger image.
Track your progress as you go.
Unlock collectible starry achievement badges as your skills grow, from Star Trails Explorer to Nebula Hunter and Milky Way Catcher. Share an achievement poster to mark each milestone.
Weighs just 840g, the lightest and most portable smart telescope available.
30mm f/5 telephoto with 1,016mm full-frame equivalent reach and six apochromatic elements.
Sony IMX662 sensor with 2.9μm pixels and RAW capture for low-noise detail.
Equatorial mode enables 90-second exposures with no star trailing.
Built-in triple filter, including a dual-narrowband Hα / O III filter for light-polluted skies.
7000mAh battery for around four hours, 64GB onboard storage, and dual-band Wi-Fi.
Automatic GoTo, autofocus, and plate-solving track and frame targets for you.
Also doubles as a daytime instrument for birdwatching, wildlife, and scenic viewing.
Every number that matters.
A real observatory, small enough to carry.
The most user-friendly telescope ever
Celestron engineers designed NexStar Evolution 5 based on years of customer feedback. It offers many thoughtful design features that combine to provide you the best possible experience out under the stars.
Forget about batteries or an external power supply. For the first time ever on a consumer telescope, NexStar Evolution 5 includes its own built-in battery. With this ultra-long life lithium-iron phosphate battery, you’ll be able to enjoy stargazing marathons up to 10 hours on a single charge. You can even use NexStar Evolution’s 5 USB charge port to top off the other devices in your life that need to stay powered on during an observing session. An intelligent power management system senses when battery levels are low and goes into power-saving mode to keep your telescope running for as long as possible.
Setting up your NexStar Evolution 5 is quick and painless with large, ergonomic handles. The all-metal tripod features a metal accessory tray with indentations for storing and carrying the tripod. During setup, leg etchings help you achieve a level, uniform height for your telescope. Manual clutches in both altitude and azimuth offer greater flexibility to manually point the telescope when powered off. Store up to 7 eyepieces in 2 accessory trays, one with an adjustable red LED illuminator.
Superior tracking fit for astroimaging
If you’re interested in astroimaging, the 5-inch NexStar Evolution 5 is an excellent, affordable way to get started. It’s the only fork-mounted telescope in its price range that offers brass worm gears, along with improved motors. NexStar Evolution’s tracking accuracy is so impressive, you can capture images of deep-sky objects like the Orion Nebula by simply attaching your DSLR camera. As you progress in the hobby of astroimaging, you can add our HD Pro Wedge to achieve longer exposures for more detailed astrophotos. NexStar Evolution compatible with the wedge when used with the CPC tripod (sold separately).
Of course, the Schmidt-Cassegrain optical system offers bright, sharp views with StarBright XLT optical coatings—a great choice for visual observers and budding astroimagers alike.
NexStar Evolution is equipped with 4 auxiliary ports--2 on top of the fork and 2 on the bottom. A classic NexStar+ hand control is included, but is not necessary when using NexStar Evolution with the mobile app. The telescope also includes a StarPointer finderscope, two 1.25” Plossl eyepieces, a 1.25” star diagonal, and an AC adapter.
"5-star overall rating"
-BBC Sky at Night Magazine
The NexStar Evolution is the first Schmidt-Cassegrain telescope with integrated WiFi. Leave your hand control behind and slew to all the best celestial objects with a tap of your smartphone or tablet. Connect your device to NexStar Evolution’s built-in wireless network, and explore the universe with the Celestron mobile app for iOS and Android.
Use the planetarium interface to view the night sky in real time or display a list of celestial objects currently visible based on your time and location. Our proprietary SkyAlign alignment procedure is built right into the Celestron mobile app, so you’re ready to observe within minutes.
| Optical Design | Schmidt-Cassegrain |
| Aperture | 125mm (5") |
| Focal Length | 1250mm (49") |
| Focal Ratio | f/10 |
| Focal Length of Eyepiece 1 | 40mm (1.57") |
| Magnification of Eyepiece 1 | 31x |
| Focal Length of Eyepiece 2 | 13mm (.51") |
| Magnification of Eyepiece 2 | 96x |
| Finderscope | StarPointer™ red dot finderscope |
| Star Diagonal | 90° Prism - 1.25" |
| Optical Tube | Aluminum |
| Highest Useful Magnification | 295x |
| Lowest Useful Magnification | 18x |
| Limiting Stellar Magnitude | 13 |
| Resolution (Rayleigh) | 1.11 arc seconds |
| Resolution (Dawes) | 0.93 arc seconds |
| Light Gathering Power (Compared to human eye) | 329x |
| Secondary Mirror Obstruction | 51mm (2") |
| Secondary Mirror Obstruction by Diameter | 40% |
| Secondary Mirror Obstruction by Area | 17% |
| Optical Coatings | StarBright XLT |
| Optical Tube Length | 330mm (13") |
| Optical Tube Diameter | 152mm (6") |
| Optical Tube Weight | 10 lbs (4.54 kg) |
| Dovetail | CG-5 Dovetail bar |
| MOUNT INFO: | |
|---|---|
| Mount Type | Computerized Altitude-Azimuth Single Fork Arm |
| Instrument load capacity | 25 lbs (11 kg) |
| Height adjustment range (includes mount and tripod) | 1193.8mm - 1752.6mm (47" – 69") |
| Tripod Leg Diameter | 31.75mm (1.25") Stainless Steel |
| Mount Head Weight | 16 lbs (7 kg) |
| Accessory Tray | Yes |
| Tripod Weight | 12 lbs (5.44 kg) |
| Slew Speeds | 9 slew speeds - max speed 4°/second |
| Tracking Rates | Sidereal, Solar and Lunar |
| Tracking Modes | Alt-Az, EQ North and EQ South |
| GPS | N/A |
| Dovetail Compatibility | CG-5 saddle plate |
| Number of Auxiliary ports | 4 Aux ports (Hand Control can use any of the Aux ports) |
| Autoguide port | No |
| USB Port | Yes, Hand Control input and Mount output |
| Power Requirements | Internal 9 6V, 4 5Ah lithium iron phosphate battery (LiFePO4) |
| Motor Drive | DC servo motors |
| Alignment Procedures | SkyAlign, 1-Star Align, 2-Star Align, Auto 2-Star Align, Solar System Align, Quick-Align, Last Alignment, EQ North / EQ South Alignment (EQ align requires an equatorial wedge) |
| Periodic Error Correction | No |
| Computerized Hand Control | 2 line x 18 character backlit Liquid Crystal Display, 19 LED backlit buttons, USB 2.0 port for PC connection |
| NexStar+ Database | Over 40,000 including 220 of the best deep sky and solar system objects |
| Software | Celestron's Starry Night Special Edition Software | SkyPortal App |
| Total Kit Weight | 38 lbs (17.23 kg) |
| Included Items | NexStar Evolution OTA | Single Fork Arm Mount & Tripod | Accessory Tray| Built-in Wifi | Integrated Lithium-iron battery | NexStar+ Hand Control | 40mm & 13mm eyepiece | Red dot finderscope | Visual Back | Star Diagonal | 4 plug AC adapter |
The Luminos series eyepieces offer a wide 82º field of view in both high power and low power models, allowing you to make the most of your telescope, whether you own a short, fast refractor or a Celestron EdgeHD telescope. The optical set consists of six or seven elements (depending on the model) and is fully multi-coated for crisp, sharp views. All six Luminos eyepieces are parfocal, which means you can switch out eyepieces during observing sessions with little or no additional focusing required.
The Luminos eyepiece body is made of polished and anodized aluminum. A rubber grip runs around the equator of the eyepiece, giving you a secure grip and an easy method for raising and lowering the retractable eyecup. Simply twist the rubber grip to adjust the height of the eyecup. The insert barrel is threaded to accept filters.
| GENERAL | |
|---|---|
| Focal Length: | 7mm |
| Apparent Field of View: | 82° |
| Eye Relief: | 12mm |
| Optical Coatings: | Fully Multi-Coated |
| Number of Lens Elements: | 7 |
| Barrel Size: | 32mm |
| Field Stop Diameter: | 15mm |
| Parfocal Eyepieces: | Yes |
| Weight: | 340.19g |
$3.00
NOTE THIS IS THE PLUG for 1.25" accessories, eyepieces only
A simple plastic cover designed to keep dust out of 1.25" accessories. This includes all standard barlows, diagonals, focusers, eyepieces, etc. Perfect to replace the factory plugs you may have misplaced since buying your telescope.
Use a dust cap to cover the front end of your eyepieces and barlows by capping it on top of the lens.
Use a dust plug to cover the back end of your accessories by plugging it inside the optical tube.
$280.00
Review This is a very good medium power eyepiece for lunar observing, resolving globular clusters, picking up detail in emission and reflection nebulas, etc.
The rubber grip give sure grip and makes it comfortable to use in cold weather.
The comfortable 14mm eye-relief is suitable for those wearing glasses .
Like all TeleVue Plossls it has filter threads to fit your filters and blackened lens edges as well as being parfocal.
Specifications
| Focal Length (mm) | 20 |
| Barrel Size (in.) | 1¼" |
| Apparent Field of View (deg.) | 50 |
| Eye Relief (mm) | 14 |
| Weight (lb / oz) | 0.19 / 3.0 |
| Field Stop (mm) | 17.1 |
Celestron Evolution 8 HD with StarSense
The NexStar Evolution keeps evolving. Evolution 8 HD pairs Celestron's best optics with their best technology to make an incredibly versatile and portable telescope system. Now, enjoy EdgeHD 8” optics and StarSense AutoAlign on the renowned Evolution mount, all controlled from your favourite tablet or phone.
With the innovative NexStar Evolution 8 HD, enjoy EdgeHD optics and controlling the telescope wirelessly with the SkyPortal app. Now equipped with StarSense AutoAlign, go-to alignment is done automatically once you tap “Connect and Align”! Observing, astro-imaging, and automatic wireless alignment are all bundled into a compact yet mechanically solid setup. This the most capable, easy-to-use and ready-for-action system we’ve ever offered.
When NexStar Evolution was introduced, it paired two of Celestron’s most acclaimed innovations, Schmidt-Cassegrain telescopes and computerized go-to optics, in a compact single fork arm mount. The technology and optics continued to evolve over the years. On the technology side, we added StarSense AutoAlign for our go-to telescopes, as well as Wi-Fi telescope control with over our new SkyPortal app. With optics, EdgeHD flat-field and coma-free astro-imaging systems were made to accommodate modern imaging with cameras of all types, especially larger format CCD and DSLR cameras. Now all of these innovations have come together in one telescope package: The NexStar Evolution 8HD. The NexStar Evolution 8HD covers all bases for compact and easy to use, and is perfectly capable for any observing to astro-imaging pursuit.
STARSENSE AUTOALIGN IN SKYPORTAL APP
Tired of the tedious alignment procedures required by most modern computerised telescopes? Come to the future with Celestron's StarSense - your telescope will align itself to the heavens for you with the tap of a button on your smartphone, and in a few minutes will be ready to show you the universe!
StarSense not only automatically aligns itself from your smart device, it also has advanced mount modelling, allowing you enter up to 10 alignment points for the most precision pointing accuracy possible. Even the most advanced telescope users will love using StarSense AutoAlign through the app. This affordable accessory replaces the expensive software usually used for advanced mount modelling. With this built-in mount modelling, you'll get superior pointing accuracy from horizon to horizon. When your alignment needs to be perfect, add up to 10 additional calibration stars to achieve a new level of accuracy, great for locating objects in the camera’s field of view for astroimaging.
SUPERIOR FIT FOR ASTROIMAGING AND VISUAL ASTRONOMY
If you’re interested in astroimaging, the 8-inch NexStar Evolution HD is an excellent way to jump in.. It’s the only fork-mounted telescope in its price range that offers brass worm gears, along with improved motors. Tracking is great, and so too is the flat-field, coma-free EdgeHD optical system.You can capture images of deep-sky objects like the Orion Nebula by simply attaching your DSLR camera. As you progress in the hobby of astroimaging, you can add a NexStar Evolution Wedge to achieve longer exposures for more detailed astrophotos.
Of course, the EdgeHD optical system offers bright, sharp views with StarBright XLT optical coatings—a great choice for visual observers and budding astroimagers alike.
NexStar Evolution is equipped with 4 auxiliary ports--2 on top of the fork and 2 on the bottom. A StarSense hand control is still included, but is not necessary when using NexStar Evolution with the app. The telescope also includes a StarPointer Pro finderscope, two 1.25” Plossl eyepieces, a 1.25” star diagonal, and an international AC adapter.
FREE SKYPORTAL APP
Access the sky and control your telescope from an interactive planetarium on your smart device – provides the best star gazing experience for you and your friends and family – know when Jupiter’s Great Red Spot will be visible, including shadow transits, planetary occultations, conjunctions, or pick the best deep sky objects to view such as galaxies and nebulae. Learn about these objects with informative backstories and beautiful image galleries, then see them for yourself through the telescope!
Controls everything, including StarSense. Tap Connect and Align and let StarSense automatically align the telescope for you. Upgradable to SkySafari Plus and SkySafari Pro.
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