Terra ED Pocket 10x25 binoculars are robust, reliable and easy to use. Their state-of-the-art and sleek design makes them not only light but comfortably compact. The highest optical precision and the hydrophobic multicoating guarantee brilliant images down to the very last detail. The Terra ED binoculars are waterproof and nitrogen-filled, making them rough and ready. Terra ED binoculars are excellent value for money, making them the perfect entry into the world of ZEISS.

ZEISS TERRA ED Pocket 10x25 features 10x magnification and an ergonomic design that allows for precise focusing in any situation. These rough and durable binoculars have an operating temperature range of -20 to +63° C as well as waterproof casing, making these binoculars a reliable companion in extreme conditions.

Comfortable, fast focusing

The large, smooth and easy-to-grip focus wheel makes focusing particularly easy and, most of all, quick on a ZEISS Terra ED. You'll notice the advantages of Terra ED binoculars as soon as you pick them up: your index finger automatically lands on the focusing wheel. You'll never again need to think about how you hold the binoculars when something exciting suddenly happens in front of you. In next to no time, you'll have it sharply in focus.

Compact, light and robust

With its waterproof casing reinforced with glass fibers, the ZEISS Terra ED satisfies the high standards of nature lovers. The construction is compact, light and robust. Light-weight, easy to fit into any bag and nearly indestructible, the ZEISS Terra ED is the perfect companion.

ZEISS hydrophobic anti-reflective coating is a guarantee of brilliant, high-contrast images which you will experience above all in adverse light conditions. Additionally, it enables a clear and unhindered view in all weather conditions thanks to its water-repellent characteristics

Specifications

Features

Physical

For sporting events, in the theatre or in the great outdoors, the Monos are the masters of versatility, fitting snugly in a jacket pocket or handbag. Depending on the model, they are ideal for use as magnifying glasses or even for binocular amplification. They can turn your binoculars into a spotting scope by tripling the magnification. Even the smallest details can be seen: nothing escapes their notice. They are also useful for long-range observation or the detailed identification of game.

When placed over the front of a telescope, handy Orion PinPoint Telescope Focusing Masks make it easy to achieve quick and precise focusing without guesswork. Also known as Bahtinov masks, these focus aids feature a laser-cut slot pattern that produces a distinct, intersecting 3-line pattern once accurate focus is achieved in any type of telescope.

Orion PinPoint Focusing Masks will help astrophotographers save time and avoid frustrating, fuzzy results caused by slightly defocused exposures. With a PinPoint Mask installed on an imaging telescope, just focus on any bright star within or near the celestial object you want to photograph and adjust focus until the intersecting 3-line pattern is displayed indicating precise focus has been achieved. Wow, that was fast! Besides astrophotographic applications, PinPoint Focusing Masks are also useful for visual observations when fast, tack-sharp focusing is desired.

Three Orion-exclusive adjustable rubber-sleeved pegs equipped with thumbscrews clamp onto the outside of your telescope tube or dew shield to hold the PinPoint Mask firmly in place. Orion PinPoint Focusing Masks are easy to install and remove so you can achieve precise focus and quickly start capturing astrophoto exposures.

Each Orion PinPoint Focusing Mask can fit a range of telescope tube diameters. For example, this 138-173mm ID Orion PinPoint Focusing Mask will fit telescope tubes with an outer diameter ranging from 138mm to 173mm (5.43" to 6.81").

Made of laser-cut black plastic. Flat for easy storage and transport.

Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only.

SKU:40008

**Haida Anti Fog Belt included with Samyang lenses purchased from BINTEL - $45 value**

Samyang 14mm F2.8 MK2 Canon EF Full Frame Camera Lens - Same Focal Length with Improved Performance!

Balanced Design - Consistent and balanced design of the body and hood.

Depth-of-Field Scale - Natural distance photo by calculating the distance and adjusting the aperture setting.

3 High Refractive Lens - 1 Hybrid Aspherical Lens, 1 Aspherical Lens and 2 Extra-Low Distortion Lens

• High Refractive lens adjusts the path of light for clear and vibrant image
• Hybrid Aspherical Lens minimises spherical and distortion aberration for sharp image quality
• ​Extra-low dispersion lens corrects the chromatic aberration

Micro Patterns Focus Ring - Improved grip and design.

Angle of Rotation Correction - Rotational angle correction (200° > 100°) enables faster focus.

Weather Sealing - This protective design enables users to capture moments outdoors in any environment, providing the dependability you need to keep shooting.

9 Aperture Blades - Providing clearly defined sunstars when the aperture is stopped-down. Its aperture mechanism comprises 9 precisely controlled iris blades, providing natural, circular, out-of-focus highlights at all apertures. With this smooth bokeh, you can create images full of character in your portrait or subject photography.

Focus Lock - ‘Focus Lock’ improves reliability in Astrophotography and time-lapse.

UMC (Ultra Multi Coating) - Effectively eliminates ghost and flare with improved resolution.

De-Clicked Aperture Ring - The De-Clicked aperture allows fine adjustment without "clicking" between F-stops. Aperture movement by removing the “click" mechanism creates a consistent, creamy rotation.

Specifications

Optron's ultra compact EQ/AZ GoTo mount -- introducing The SkyHunter Portable EQ/AZ

Fifteen years after releasing the innovational Cube AZ/EQ GoTo mount, the SkyHunter takes the next step toward perfection. It is the lightest and most compact full function portable goto mount in iOptron's exceptional history.

Weighing in at only 1.3kg (including internal rechargeable battery), the SkyHunter is capable of supporting an 5kg payload in both equatorial and alt-azimuth modes. The SkyHunter mount features four tracking rates, 1X or sidereal, 1/2X for sky and landscape combined, solar and lunar. All 4 tracking rates work in both northern and southern hemispheres. The SkyHunter mount can be controlled by an iOS or Android SmartPhone/tablet, an optional 8410 hand controller, or a computer via ASCOM, INDI or embedded drive.

(PLEASE NOTE - telescopes shown are *not* included.)

MAIN FEATURES

• Specialized Grab N’ Go GOTO EQ/AZ mount
• Mount weighs 1.3kg
• Payload 5kg (balanced, exclude CW)
• Dual-axis servomotors with optical encoders
• Tracking speed: solar, lunar, 1X, 1/2X, S/N
• Operation in both northern and southern hemisphere
• Vixen dovetail saddle
• Built-in rechargeable battery for up to 10 hours of operation (20°C)
• Built-in WIFI adapter for full ASCOM, iOptron Commander and Sky Safari control
• USB port for firmware upgrade and computer control
• Optional Go2Nova® 8410 controller with Advanced GOTONOVA® GOTO Technology
• iPolar electronic polar scope
• Counterweight Shaft: Φ20X200mm with 3/8” thread, stainless steel
• Counterweight: 3 lbs (1.35kg)
• Attaches to a camera tripod with 3/8” or 1/4” threads
• 1.25" Stainless steel tripod (#3221)
• Optional carbon fiber tripod
• Pier-extension (#8041)
• One year limited warranty on mount, 90 day for battery

PACKAGE CONTENTS

• SkyHunter Portable EQ/AZ mount
• EQ base
• Stainless steel counterweight shaft
• 3 lbs counterweight
• iPolar electronic polar scope
• MiniUSB charging cable
• #3221 Tripod
• #8041 Pier extension
• One Year Limited Warranty (90 day on battery)

SPECIFICATIONS

The essentials:

• Impressive impressions at all distances
• Excellent close focusing distance below 1.90 m
• Ideal contrasts and transmittance for the best visual perception of color nuances and the smallest details

Our new mid-level Kendrick Dewminator Controller is the perfect choice for those who are budget conscious but still want more than basic features.

Kendrick Dewminator Controller features 4 individual adjustable heater ports and dual DC Accessory Ports that can power other 12V equipment.

Product Features:

• Heavy-Duty, individually adjustable power output for up to 4 heaters.
• 2 DC Accessory Ports
• 15 Amps total power (max 7 Amp with Cigarette Lighter Plug).
• Dimmable lights! In fact, after 20 seconds, they shut-off! Turning any knob will "wake-up" the lights again.
• User Changeable Cord.
• Cord Management - Power other devices using the 2 DC Accessory Ports. For example, our 12V USB Hub.
• Low Voltage Cut-Off - A Kendrick Standard that saves your battery from permanent destruction.
• Disable Low Voltage Cut-Off. We don't recommend it, but if you want to drain your battery beyond repair it is now possible.

Anderson Power Pole Option: All Kendrick Dew Controllers include a power cord with that uses a Cigarette Lighter Plug with an internal 7 Amp fuse. Some astronomers prefer Anderson Power Pole Connectors which are superior to cigarette lighter plugs. We also terminate the power cord with a special "pluggable terminal block" which makes it easy to make your own power cord. For convenience, we offer 2 Anderson Kits that include the Red & Black plastic shells and 2 metal contacts. The "Pre-Welded" model permanently fuses the plastic shells together using a plug orientation that works with Kendrick Power Supply/Distribution products. If you are unsure of the plug orientation you need, purchase the "non-welded" model.

Extra Power Cords are available.. The controller does include a power cord, but some people like a spare cord and they are available for purchase.

SKU 2660-L

Specifications:

• 1-meter cable with SHT31 PE Probe
• Operating relative humidity range (0-100%) with 2% RH accuracy
• Operating temperature range (-40 to 125 °C) with 0.2 °C accuracy.

For Celestron NexStar hand controllers without a built-in USB port

• Compatible with INDI & ASCOM
• Compatible with Windows 7,8, 10. MacOS and Linux
• Compatible with StellarMate.
• Based on FTDI chipsets.
• Cable length is 1.8 meter

Farpoint Lift Carry Straps for GSO 12 Inch Dobs

These Lifting Straps make it easy to install or remove your OTA from the Base of your Bintel Dobsonian or most other Dobsonian telescopes with a 14″ diameter solid tube OTA. Sold as a pair, these two straps wrap around your OTA and secure with Velcro.

The built-in handle makes for a sure grip.

Placing the straps above and below the altitude bearings makes your OTA much easier to lift and maneuver.

Farpoint Laser Collimator 635nm (2-1.25 inch)

All Farpoint laser collimators have a LIFE TIME Alignment Guarantee. We will realign any Farpoint laser collimator for free! But Farpoint lasers keep their factory alignment. This is due to our robust laser body and (most importantly) our unique alignment screw design explained below.

Farpoint lasers have EIGHT alignment screws instead of six, four, or even three as in some other lasers. Instead of a staggered arrangement (top hole, bottom hole, top hole) that can allow the diode to move, BOTH ends of the laser diode are held in place by two sets of directly opposing screws for precise and lasting alignment. Again, only Farpoint lasers have this superior alignment screw arrangement with four DIRECTLY OPPOSING screws aligning the top of the laser diode and another four DIRECTLY OPPOSING screws aligning the bottom of the laser diode.

Farpoint laser bodies are precisely machined from a single piece of aluminum in a single machining step, resulting in perfect alignment.

Farpoint lasers have a small aperture (0.76mm or 30/1000 of an inch) for less speckling and more precise reading of the laser beam’s position on the telescope mirror. Farpoint has the smallest aperture of any laser in the amateur astronomy market.

Product Information TE-9Z 20-60X ZOOM EYEPIECE

Kowa's TE-9Z 20-60x Zoom Spotting Scope Eyepiece is compatible with TSN-82SV, TSN-660, and TSN-600 series spotting scopes to provide a wide magnification range that will satisfy most of your observational needs. Using a simple bayonet mount, it installs easily, and the knurled dial makes changing the zoom quick and sure. The TE-9Z features a wide apparent field of view – 42-126° with 60mm and 66mm scopes and 40-126° with the 82mm scope – and a 16/16.5mm eye relief value for comfortable glassing, even with eyewear.

Enjoy a more comfortable viewing experience with your StarSense Explorer Tabletop Dobsonian telescope with this adjustable-height tripod. Adding this solid, sturdy tripod allows you to set up your Tabletop Dobsonian at the perfect viewing height for everyone in your group and avoid lower obstructions.

Durable Construction

The Tripod for StarSense Explorer Tabletop Dobsonians securely locks your Dobsonian base and telescope to the tripod using three captured screws on the underside of the mounting plate. The integrated accessory tray functions as a center support to make the entire structure stiff and rigid. It can also hold up to five additional 1.25” eyepieces. The all-metal tripod is constructed from high-quality materials that can withstand years of use in tough outdoor conditions.

Viewing Comfort

Achieve the perfect viewing position with ease. The tripod comes with three adjustable, stainless steel 1.5" diameter legs. Whether you prefer to observe standing up or sitting down, you can find the most comfortable position for an immersive stargazing experience. The raised tripod helps to combat viewing obstructions like fences and low-profile trees.

Designed with portability in mind, this tripod is lightweight and foldable, so it’s easy to transport and set up at your favorite observing locale. Spend less time assembling and more time exploring the wonders of the night sky. When you’re done observing, the legs fold inward and stow neatly under the mounting plate.

Pentax SP 12x50 WP

Large objective lenses incorporated in the design allow for contrast-rich, bright viewing under all light conditions.

Premium multi-layer coatings assure the maximum light transmission through the binocular. The result is bright, crisp, true-to-life images in the widest range of viewing conditions.

Specialized protective coating (SD models only) repels dust, water and grease to keep your optics clean and your image quality at its peak.

Rigid body construction makes these binoculars extremely rugged to maintain optical alignment. This ensures comfortable viewing throughout the life of the product.

Waterproof and nitrogen-filled (JIS Class 6) to handle the most extreme weather conditions (submersible to 1m).

https://www.youtube.com/watch?v=5wWKjpDR4J8

When inserted between the eyepiece and telescope, this X-Cel 2X Barlow lens doubles the magnification of all your 1.25” eyepieces. The premium apochromatic optics yield high contrast, sharp images, virtually free of false colour.

The black anodized housing with orange highlights matches the eyepieces in the Celestron X-Cel LX line. A centralised rubber grip helps to keep your hands securely on the barrel, even when your fingers are cold or you are wearing gloves. A brass compression ring just inside the top of the X-Cel Barlow grabs your eyepiece gently but firmly when you turn the thumbscrew. Once the thumbscrew has been secured in place, the brass ring keeps your eyepiece in the Barlow instead of relying on the tip of the thumbscrew itself, offering a better grip and protecting the barrel from scratches.

The barrel of the Celestron X-Cel LX 2x Barlow is threaded to accept 1.25” filters, allowing you to change eyepieces without removing and re-attaching the filter from each eyepiece barrel.

A rock-solid dual fork arm mount and large aperture at an affordable price: that's what makes the Celestron CPC 800 GPS telescope a favorite among experienced amateur astronomers. Celestron's revolutionary SkyAlign plus an internal GPS make alignment a snap compared to other controllers. Use the computerised hand control to quickly slew to over 40,000 celestial objects, then track your target precisely as it moves across the night sky. Imagers can place the CPC dual fork arm mount on an optional HD Pro Wedge to polar align it for long-exposure astrophotography. Thoughtful ergonomic design makes setting up and breaking down your CPC quick and painless.

Optional Solar Filter

General Features of the Celestron CPC 800 GPS (XLT)

• 8" diffraction limited Schmidt-Cassegrain telescope
• Celestron's premium StarBright XLT coatings provide brighter images over standard coatings
• Fully computerised dual fork arm Altazimuth mount
• 8x50 finderscope to help accurately find objects
• Newly designed heavy-duty tripod makes attaching the telescope so easy you can do it in the dark; also features sturdy 2" steel legs and accessory tray
• Ergonomic design allows you to comfortably lift and move the telescope from location to location
• Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
• Convenient remote hand control holder - Allows you to view information hands-free while using the scope

COMPUTERIZED MOUNT FEATURES

• Proven NexStar computer control technology
• 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects
• Custom database lists of all the most famous deep-sky objects by name and catalog number; the most beautiful double, triple and quadruple stars; variable stars; solar system objects and asterisms
• Re-designed drive base and drive mechanics provide improved performance - Quiet operation; large drive gears, quick release clutch
• SkyAlign allows you to align on any three bright celestial objects, making for a fast and easy alignment process compared to conventional 2 or 3 star methods
• Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
• Permanent PEC
• Auxiliary port for additional accessories such as Autoguider, GPS accessory
• NexRemote telescope control software and RS-232 cable included for advanced control of your telescope via computer

Instruction Manual

Normally available for pickup or shipping approx. 2-3 business days from your order

Celestron CPC 925 GPS (XLT) Computerized Telescope General Features

9.25" diffraction limited Schmidt-Cassegrain telescope
F10
Focal Length 2350mm
Celestron's premium StarBright XLT coatings
Fully computerized dual fork arm Altazimuth mount
9x50 finderscope to help accurately find objects
Newly designed heavy-duty tripod makes attaching the telescope so easy you can do it in the dark; also features sturdy 2" steel legs and accessory tray
Ergonomic design - Comfortably lift and move the telescope from location to location
Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
Convenient remote hand control holder - Allows you to view information hands-free while using the scope

Computerized Mount Features

Proven NexStar computer control technology
40,000 object database with over 100 user-definable objects and expanded information on over 200 objects
Custom database lists of all the most famous deep-sky objects by name and catalog number; the most beautiful double, triple and quadruple stars; variable stars; solar system objects and asterisms
Re-designed drive base and drive mechanics - Quiet operation; large drive gears, quick release clutch
SkyAlign allows you to align on any three bright celestial objects, making for a fast and easy alignment process
Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
Permanent PEC
Auxiliary port for additional accessories such as Autoguider, GPS accessory
NexRemote telescope control software and RS-232 cable included for advanced control of your telescope via computer

The Power of GPS GoTo Technology

The Astrozap AZ-117 Flexi-Shield® is a flexible dew shield designed for the Celestron NexStar 5 SE, with a notch cut to clear the side-mounted dovetail bar. It's the easiest upgrade you can make to extend observing time on dewy nights.

More observing, better contrast

On a compact 5" SCT the corrector plate fogs up fast. The Flexi-Shield creates a pocket of slightly warmer, still air in front of the optic and blocks stray light from the surrounding environment, resulting in longer sessions and crisper views.

Features

• Notch for the NexStar side bar so the shield sits flush
• Felt-lined interior for moisture absorption and stray-light control
• Quality ABS polymer construction
• Padded VELCRO® Brand closure won't scratch your tube
• Rolls up small for easy packing

Compatible telescopes

• Celestron NexStar 5 SE

Proudly made in the USA.

ASI585MC/MM Pro is a new ZWO deep sky camera based on the 4k SONY CMOS sensor with a 1/1.2″ format and 2.9μm pixels. It has a super high sensitivity and a large resolution of 3840*2160 (8.29MP in total). It also features high transmission speeds – In high-speed mode, the fast frame rate can reach 47fps with low read noise at full resolution! It also features a high SNR and high sensitivity, especially in near-infrared wavelength. Being an entry-level DSO camera, it offers great advantages of high cost-effectiveness.

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. Be aware that using a power supply out of this voltage range will probably lead to irreparable damage to the camera.

Why Choose ASI585MC/MM Pro?

One Camera for All

The STARVIS 2 technology brings ASI585 Series 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.

Large Full Well Capacity

The back-illuminated structure improves the camera’s full well capacity. Even with unbinned 2.9μm pixels, ASI585 Series 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

ASI585 Series 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

ASI585 Series 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 ASI585 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, ASI585 Series 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 ASI585 Series at the temperature from -20℃ to 30℃.

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 0.7e.

QE (Quantum efficiency)

Based on our testing results, the QE peak value of ASI585 is 91%.

Structural Dimension Diagram

What is in the box?

ZWO T2-1.25 Inch Holder has M42 *0.75 (T-Thread) on each end,

Can be used to hold any 1.25" Accessory,.

Has Brass Compression Ring

Thumbscrews included

SKU: ZWO T2-1.25M

ASIAIR PRO is a smart WiFi device that allows you to control Mainstream DSLR cameras.

But some DSLR cameras have a 30-second exposure limit, which requires an external shutter release cable to ASIAIR PRO.

ZWO Shutter Release Cable is of the soft, curled type that can extend the usable length.

N3 (MC-DC2, 8PIN)
D90/ D3200/ D3300/ D5000/ D5100/ D7000 Cable

Length: 1 meter

The new ZWO LRGB 2in Filters has good performance in transmission, the high quality coatings offer good colour separation.

Fits the NEW ZWO EFW-5x2 and ZWO-EFW-7x2

Technical Parameter:

Name: ZWO LRGB 2in Filters (4 filters)

Size: 2″

Thickness: 5 mm+2.5mm(thread)

Thread: M48*0.75

Thickness: 1.85mm

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

Sky-Watcher 80/900 AZ-Go2 Refractor Telescope

The Sky-Watcher 80/900 AZ-Go2 is an 80mm Achromatic Refractor Telescope that come with a focal length of 900mm. It's an ideal size for beginners, offering views of:

• The Moon
• Rings of Saturn, moons of Jupiter (if in the sky when you're observing)
• Deep-sky objects including nebulae, star clusters and more

Images viewed through a refractor telescope have a classic quality that other telescope designs lack. Since a refractor does not use mirrors to view objects, you get a generally sharper image. Images are also displayed without the secondary mirror shadow, making it suitable for terrestrial viewing when used with a 45° erecting image diagonal provided. The 80mm collects around 130 times as much light as your eyes compared to the 100x times as much as the 70mm model. More light means sharper, clearer views.

The AZ-Go2 Mount – Wi-Fi-controllable with iOS and Android and compatible with SynScan hand controller, allowing it for smooth tracking and alignment. Use Wi-Fi to control the telescope wirelessly with your mobile device; smartphone or tablet.

Download the SynScan App from Google play or the App Store.

AZ-Go2 Mount Features:

• Wi-Fi GOTO
• 12V DC Voltage
• 1.3kg Mount Weight
• DC Motor

In the Box:

• 80mm Refractor
• AZ-Go2 Mount
• Smartphone Adapter
• 10 and 25mm Super Plossl Eyepieces – 1.25″ Barrel
• 90° Diagonal – 1.25″ Barrel
• Red Dot Finderscope
• Power Requirement: 12v DC Power Supply (Tip Positive) or AA Batteries (not supplied)
• Stainless Steel Tripod with Accessory Tray

Optional handle for the Evolux 62 and 82 optical tube assemblies. Built in Vixen style dovetail for adding accessories.

Thousand Oaks Threaded Camera Filter 58mm features universal camera threads and the same SolarLite filter material found in our telescope solar filters.

SolarLite Film is a metallic coating outside surface & absorptive material within the substrate.

It blocks 99.999% of the energy from entering the instrument. Suitable for visual and photographic use.

Instructions for use:

Warning: The Solar filters MUST be first in line with sun and in front of any telescope or camera lens or mirror. Filter should NEVER be used behind any lens, eyepiece or finder. This includes camera drop in holders behind lens or binoculars

SKU: 58-T

Thousand Oaks Threaded Camera Filter 67mm features universal camera threads and the same SolarLite filter material found in our telescope solar filters.

SolarLite Film is a metallic coating outside surface & absorptive material within the substrate.

It blocks 99.999% of the energy from entering the instrument. Suitable for visual and photographic use.

Instruction for use:

Warning: The Solar filters MUST be first in line with sun and in front of any telescope or camera lens or mirror. Filter should NEVER be used behind any lens, eyepiece or finder. This includes camera drop in holders behind lens or binoculars

SKU: 67-T

The Annals of the Deep Sky Vol 7: A Survey of Galactic and Extragalactic Objects is a comprehensive reference that guides astronomy enthusiasts into every mind-boggling corner of the observational universe. Each volume presents extensive descriptions of prominent stars and deep-sky objects in both the Northern and Southern hemisphere skies, including rarely observed objects and other celestial exotica. Incorporating the most recent findings in astrophysics and cosmology, deep historical context, and captivating illustrations and images, Annals provides readers with in-depth profiles of celestial objects beyond the solar system. The mission of every Annals volume is to guide observers on their own astronomical journey of exploration, whether it be at the eyepiece or from the comfort of a favorite chair on a rainy night. No other popular work in astronomy provides the comprehensive historical background and astrophysical appraisal of prominent celestial objects.

Covers; Corona Borealis, Corvus, Crater and Crux.

ISBN: 978-1942675136

The Shoestring USB Guide Port Interface adapter plugs directly into a USB port on your computer or a USB hub attached to your computer. Using an RJ-12 cable, the adapter connects to the guide port of your telescope mount. This guide port interface uses optocouplers to electrically isolate the computer from the telescope, eliminating a possible source of electrical interference. This interface adapter requires no external power source since it receives its power via the USB cable.

Thanks to webcam technology, it is now easy and much less expensive to set up your own autoguiding system. You'll need a PC or laptop computer, a webcam or other video device, autoguiding software, and some sort of interface so that the computer can talk to your telescope mount and direct it's motion. Of course, you will also need a telescope mount that is capable of receiving tracking correction commands. To use our products shown below, your mount will need an ST-4 compatible guide port.

The Saxon 10" DeepSky CT Dobsonian Telescope （254/1200） features a powerhouse telescope with amazing light-gathering capabilities that's easy to use and transport.

This telescope is the retractable twin to the full-tube Saxon 10" DeepSky Dobsonian Telescope and comes with the same specs of 254mm aperture and a focal length of 1200mm. Featuring a collapsible truss-tube dobsonian design, the optical tube can be retracted into a shorter length and locked down to ensure secure and easy transportation. This scope also comes with a paraboloidal primary mirror to eliminate spherical aberration allowing you to see wide-field views of the Moon, constellations and deep sky objects such as the Great Orion Nebula.

Assembly of the telescope requires no additional tools. You'll be pleased with how easy it is to use the Saxon 10" DeepSky Collapsible Dobsonian Telescope with its Dobsonian mount. Simply swivel the telescope to the direction of your intended object and look through the eyepiece. This scope's Teflon bearing system in both axes with tension control handle means you'll be able to smoothly move your telescope to a precise location.

What is a Dobsonian telescope and why the tension control handle?

A simple, elegant form of an alt-azimuth mount made to carry a Newtonian reflector was popularized by John Dobson in the late 1970's. The Dobsonian mounted telescope is popular among amateur astronomers and telescope makers because of its simplicity. In its simplest form, the Dobsonian mount consists of a box which allows the optical tube assembly to pivot in altitude, while the box itself is swivelled on a base in azimuth.

The Dobsonian mount usually relies on the friction between the side bearings on the optical tube of the telescope and a frictional material on the saddle to hold the optical tube in place. If there is too much friction, the telescope is difficult to move to center an object in the filed of view. If there is too little friction, the telescope will not sty where it is positioned. This makes stabilizing the optical tube of the telescope difficult when using a Dobsonian mount, especially when accessories, such as a finderscope or an eyepiece, are added to the optical tube. As long as the amount of friction is at an appropriate level, and therefore stabilization of the optical tube is achieved, the telescope can remain in its desired position to view an object and maintain its position even when the mount is rotated.

The devices for stabilizing a telescope on the Dobsonian mount currently available include: a sliceable weight to counter balance the weight of the telescope, a friction lock that must be adjusted to inhibit movement of the telescope, and a spring attached between the telescope tube and mount to aid in stabilization.

These devices are inconvenient to use because they do not provide a simple and user-friendly way to adjust the friction. The objective of the saxon Tension Control Handle invention is to provide a tension adjuster that users can easily turn to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboard of the mount.

By providing such a tension adjuster, the telescope does not need to be balanced in order to stay in position. The tension adjuster can be tightened such that the optical tube can stay in a position but can still be moved when prompted to adjust the position of the optical tube. Alternatively, the tension adjuster can be completely tightened to lock the optical tube in position.

The saxon 30x80 Night Sky Waterproof Binoculars offer beautiful views of the night sky as well as expansive sights on land.

These floating waterproof binoculars are feature-packed:

• Metal body with rubber covering
• BAK-4 prisms
• Fully multi-coated lenses
• Long eye relief
• Central focusing
• Heavy duty tripod adapter incorporated
• Backpack carry case.