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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
Products on sale
150 products
150 products
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The Celestron Dew Heater Ring is the ideal dew prevention solution for your Celestron telescope. This must-have accessory will improve your observing or imaging nights year-round. The Dew Heater Ring permanently mounts to your 6" Celestron Schmidt-Cassegrain optical tube, replacing your retaining ring, so you'll never be caught without it. The installation process is quick and easy (follow the manual for instructions).
How it works
The Dew Heater Ring replaces the plastic retaining ring on your Schmidt corrector lens for efficient heating across the lens. The ring is constructed of lightweight, durable aluminum. Its rigid frame supports the cable circuity and the telescope's Schmidt corrector lens. Unlike other heating bands or strips that inefficiently heat the lens cell to warm the glass, the Celestron Dew Heater Ring heats the corrector glass directly, providing the most efficient transfer of heat to prevent dew formation.
Simply plug the ring into an external 12V DC power source for consistent, continuous heat that will prevent dew from forming even under heavy dew conditions. The Dew Heater Ring features two storage clips to keep the power and thermistor jacks secure when not in use while accommodating the telescope's dust cover.
The Dew Heater Ring also comes with a cable management clip that connects to the telescope's front cell. Corral the power and thermistor jack to prevent them from dangling and reduce unwanted pulls on the cable connection to the rings.
The Dew Heater Ring comes complete with:
- Dew Heater Ring
- Cable management clip
- Power jack extension cable
- Paper installation shield
Enhance your setup
To achieve the highest level of dew prevention while maximizing power efficiency, we strongly recommend pairing the Dew Heater Ring with a Smart DewHeater Controller (sold separately). The controller uses the ring's built-in thermistor and its internal environmental sensor to provide just the right amount of heat to the corrector to prevent dew based upon the ambient temperature, ambient humidity, and temperature of the Schmidt corrector, which can dramatically reduce the ring’s power draw, greatly increasing battery life. The ring also includes an extension cable for connecting the ring directly to one of the controllers’ heater output ports, or to a third-party controller’s heater output port. (Note: the ring’s integrated thermistor is only compatible with the Celestron Smart DewHeater Controllers).
We also recommend adding a dew shield to your setup. While not mandatory, a shield will cut down on the amount of power the Dew Heater Ring needs to keep the optics clear.
| Max Power: | 12 watts |
| Power Jack: | 12V DC barrel connector, 5.5mm/2.1mm, tip positive |
| Ring construction: | Aluminum |
| Power Jack extension cable: | 6" long, 12V DC, 5.5mm/2.1mm barrel connector on one end, male RCA connector on other end, tip positive |
| Thermistor Jack: | 2.5mm audio jack, compatible with Celestron SmartHeat Dew Controllers |
| Compatibility: | 6" Schmidt-Cassegrain |
$399.00
You know what they say about people who assume you can't get HD optics, rugged performance and high end form-factor in a value-price binocular? They clearly haven't checked out the Vortex Crossfire HD 10x50. Add in the included GlassPakTM binocular harness for quick optic deployment in the field and superior protection and comfort - The Crossfire® HD truly is a rare find.
OPTICAL FEATURES
Vortex Crossfire HD 10x50 Optical System Optimized with select glass elements to deliver exceptional resolution, cut chromatic aberration and provide outstanding color fidelity, edge-to-edge sharpness and light transmission.
Fully Multi-Coated Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
CONSTRUCTION FEATURES
Rubber Armor Provides a secure, non-slip grip, and durable external protection.
Waterproof O-ring seals prevent moisture, dust and debris from penetrating the binocular for reliable performance in all environments.
Shockproof Rugged construction withstands recoil and impact.
Fogproof Nitrogen gas purging prevents internal fogging over a wide range of temperatures.
Roof Prism Valued for greater durability and a more compact size.
CONVENIENCE FEATURES
Adjustable Eyecups Twist up and down for comfortable viewing with or without eyeglasses.
Center Focus Wheel Adjusts the focus of both binocular barrels at the same time.
Diopter Adjusts for differences in a user's eyes. Located on right eyepiece.
Tripod Adaptable Compatible with a tripod adapter, allowing use on a tripod or car window mount.
Specification
| Magnification | 10x |
|---|---|
| Objective Lens Diameter | 50 mm |
| Linear Field of View | 320 feet/1000 yards |
| Angular Field of View | 6.1 degrees |
| Eye Relief | 17 mm |
| Height | 6.7 inches |
| Width | 5.3 inches |
| Weight | 862g |
| Exit Pupil | 5 mm |
| Interpupillary Distance | 60-76 mm |
| Close Focus | 6 feet |
Warranty
All Vortex products are covered by the Australian Vortex VIP Warranty
Our warranty is about you, not us. It's about taking care of you after the sale.
The VIP stands for a Very Important Promise to you, our customers. We will repair or replace your Vortex product in the event it becomes damaged or defective—at no charge to you other then return post from you to us. It doesn't matter how it happened, whose fault it was, or where you purchased it. You can count on the VIP Warranty for all riflescopes, red dots, rangefinders, binoculars, spotting scopes and monoculars.
- Unlimited Lifetime Warranty
- Fully transferable
- No warranty card to fill out
- No receipt needed to hang on to
If you ever have a problem, no matter the cause, we promise to take care of you.
The VIP warranty does not cover loss, misuse, theft or deliberate damage to the product.
$39.00
Take the guesswork out of using third-party heating bands or straps and increase your power efficiency with the Celestron Thermistor for Smart DewHeater Controllers. This accessory allows the Smart DewHeater Controller (sold separately) to deliver just the right amount warmth for to your telescope’s corrector to prevent dew without wasting battery. 6’ cable length accommodates a wide variety of configurations.
How it works
Connect the heating band to your telescope and place the Thermistor's sealed probe tip under the heating band. Plug each cable into its corresponding port of the Smart DewHeater Controller.
NOTE: This thermistor is not required if you are using a Celestron Dew Heater Ring because the ring already contains a built-in thermistor.
NOTE: Heating Band Not included.
Enhance your setup
We also recommend adding a dew shield to your setup. While not mandatory, a shield will cut down on the amount of power your dew heater needs to keep the optics clear.
| Plug: | 2.5mm Audio |
| Cable Length: | 1828.8mm |
The Sky-Watcher family of EvoStar ED telescopes started with the 80ED, a value for money favourite of astronomers all over the world.
The new Sky-Watcher Evolux 82ED refractor is perfect for those looking for a compact and ultra-transportable instrument ideal for Wide Field, Deepsky astrophotography.
An optional custom designed 0.90X reducer/ flattener is available as an option.
It flattens the field for pinpoint stars right out to the edges, whilst reducing the focal length to 480mm
The new EVOLUX 82ED continues this tradition with major enhancements including:
- Unparalleled levels of optic performance for an ED telescope
- Updated 2-lens element design
- New ED glass
- 82mm / f 6.4 (f5.8 with optional reducer)
- New optional re-designed dedicated reducer/field flattener for wider field of view and faster imaging
- Retractable integrated dewshield for improved handling
- Precision 61mm (2.4″) dual-speed focuser
Here's a great mount option:
Specifications:
- Focal length=530mm / f = 6.4
- Focal length = 480mm / f=5.8 with optional dedicated reducer/flattener for wider field of view
- Net Weight: 2.6kg
- Retractable dewshield for compact handling and storage
- High precision new 61mm (2.4″) dual-speed focuser
- Aluminium hard case
- V style Dovetail
GERBER Ultra HD 20-60x80mm Spotting Scope
Get the most out of your viewing experience with our GERBER Ultra HD 20-60x80mm Spotting Scope. Featuring an amazing new HD 20-60x zoom eyepiece at 45° angled-viewing to provide comfortable views from generous sea views to much more detailed images, including target shooting.The 80mm objective lens possesses light-gathering capability superior to that of scopes with smaller lenses, which makes for a bright image and enhances the scope's capabilities in low-light conditions.
Supplied with a premium neoprene soft case, shoulder strap, eye piece cover and lens cap with extendable hood, smart phone adaptor and a premium table top tripod, all in a stylish coloured package
- Type: Zoom
- Magnification/Diameter: 20-60x80mm
- Focusing: from 8m
-
Field of View:
- Angle: 2.2° (20x) - 1.2° (60x)
- at 1000m: 38m (20x) - 19m (60x)
- Waterproof: Yes; IPX7
- Weight: 1.55kg
- Tripod Adaptability: Yes
Gerber Optics are made with an uncompromising commitment to quality. Their superior components ensure the ultimate viewing experience for every user. Featuring a wide assortment of models with distinctive specifications. Gerber Optics have become the favourite choice of avid hunters, birdwatches and boating enthusiasts.
Features
- Angled viewing: Eyepiece is at a 45° angle for more comfortable viewing from various positions
- Dual focusing allows you to get subjects in focus quickly with coarse focus control and then refine the image with the fine-focus control
- Tripod mount rotates 360° for positional flexibility
- Sliding sunshade to keep glare or moisture off the objective lens
- Twist-up eyecup for comfortable use with or without eyewear
- Nitrogen-filled body is waterproof and fogproof
- Durable heavy duty rubber-armored polycarbonate housing
- Neoprene Stay-on carrying bag with shoulder strap allows for faster setup and breakdown while keeping the bag off the ground
3 Segment of objective lens-20X|100X|200X objective lens
Rotate left and right to switch the objective lens.
The eyepiece camera itself magnifies 6 times.
Large 9" screen 1080P colour screen Multi-touch operation
The large 9 inch screen allows for best high-resolution viewing of your specimen.
The touch screen also allows you to edit and measure all specimens to achieve the best possible results.
Included in the box
|
Microscope x 1 |
Data cable x 1 |
| Manual x 1 |
USB Adapter x 1 |
Specs
| Screen Size | 9 Inches |
| Recording resolution | 1080p |
| Camera Pixels | 5 million |
| Storage | 32GB |
| Data format types | JPG / AVI / BMP |
| Magnification | 20 – 50x / 800x / 1600x |
| Light source | Top and bottom lit (Adjustable brightness) |
| Focusing Range | 10-40mm @ 20-50x |
| Battery | 3500 mAh |
From $65.00
Adjust the brightness level of the Moon, Venus, and other bright objects with the Optolong Variable Polarizer. A standard Moon Filter is similar to a pair of sunglasses. They work fine, but sometimes the scene is too dark or too bright, and there’s not a lot you can do about it. A variable polarizing filter is much more flexible than a Moon filter. It allows you to set the percentage of attenuation by turning the top section of the two-piece filter. Simply attach the 2" threaded filter to a like-sized eyepiece or Astro accessory barrel, and then slowly rotate the top half of the filter—it turns 360°—to achieve the results you desire.
The Optolong Variable Polarizing Filter also works great to cut brightness when you are using your telescope for terrestrial observations or photography. If you have ever done photography through a SLR or DSLR camera, you may have already been introduced to the qualities of a polarizing filter, since it is a very popular accessory for polarizing the light and making the sky appear bluer. You will especially appreciate a polarizing filter when viewing over water or photographing a scene that includes a river or body of water. Simply turn the filter until you achieve the most glare-free results—you will really see the difference.
| 1.25 inch | 2 inch | |
| Brand | Optolong | Optolong |
| Type | Variable Polarizing | Variable Polarizing |
| Substrate Thickness | 2mm | 2mm |
| Clear Aperture | 26mm | 44mm |
| Surface Quality | 60/40 | 60/41 |
| Surface parallelism | 1/4λ | 1/4λ |
| Parallelism | 30" | 30" |
| Thread | M28.5*0.6 | M48*0.75 |
| Single Thread | Yes | Yes |
$820.00
Nikon MONARCH M7 10 x 30 binoculars are ideal for bird and nature watching, stargazing, and a range of other outdoor activities.
The MONARCH M7 Series
The MONARCH M7 10 x 30 binoculars feature a sleek exterior design with a wide apparent field of view (60.7˚for 10x30) that offers spectacular viewing. An oil and water repellent coating is applied to the objective lens and eyepieces, allowing smudges like fingerprints to be easily wiped off.
Key Features
- Sophisticated exterior design for comfortable holding
- Extra-low dispersion (ED) glass for chromatic aberration compensation and brighter, clearer viewing
- Wide apparent field of view (60.3˚ for 8x42, 62.2˚ for 10x42, 60.3˚ for 8x30, 60.7˚ for 10x30)
- Dielectric high-reflective multilayer prism coating ensures superior transmittance uniformity across the visible range, resulting in brighter images and more natural colours
- All lenses and prisms are multilayer-coated for brighter images
- Oil and water repellent coating applied to the objective lens and eyepieces allows smudges like fingerprints to be easily wiped off
- Phase-correction-coated roof prisms for high resolution
- Long eye relief design ensures a clear field of view, even for eyeglass wearers
- Dioptre adjustment ring locking system prevents unintentional rotation
- Waterproof (up to 1m/3.3 ft. for 10 minutes) and fog-free with O-ring seals and nitrogen gas
- Turn-and-slide rubber eyecups with multi-click facilitate easy positioning of eyes at the correct eyepoint
- Rubber armouring for shock resistance and a firm, comfortable grip
- Lightweight body uses fibreglass-reinforced polycarbonate resin
- Soft-to-the-touch neck strap
- Flip-down objective lens cap
- Optional tripod adapter enables attachment to a tripod
Specifications
| Monarch M7 10 x 30 | 10 x 30 | |
| Actual magnification | 〔×〕 | 10 |
| Effective objective diameter | 〔mm〕 | 30 |
| Angular field of view (Real) | 〔°〕 | 6.7 |
| Angular field of view (Apparent)*1 | 〔°〕 | 60.7 |
| Field of view at 1,000m | 〔m〕 | 117 |
| Exit pupil | 〔mm〕 | 3.0 |
| Brightness | 9.0 | |
| Eye relief | 〔mm〕 | 15.8 |
| Close focusing distance | 〔m〕 | 2.0 |
| Length | 〔mm〕 | 119 |
| Width | 〔mm〕 | 125 |
| Depth | 〔mm〕 | 48 |
| Weight | 〔g〕 | 470 |
| Interpupillary distance adjustment | 〔mm〕 | 56-72 |
| Waterproof structure | Waterproof (up to 1m/3.3 ft. for 10 minutes)*2, fogproof | |
| Prism type | Roof |
Nikon Action
Bright, multicoated lenses and BaK4 high index prisms: Deliver bright, high-resolution images with the Nikon Action EX 7x35.
Long eye relief: For a clear and comfortable view, especially for people who wear eyeglasses.
Smooth central focus knob: Fast range of focus for quick viewing. No bird goes unseen.
Unique click-stop, twist-out eyecup design: Delivers both long eye relief and variable eye relief to customize these binoculars to your eyes and accommodate glasses.
Ergonomic body design: Comfortable for extended viewing.
Durable and protective, rubber-armored coating: Provides a sure, non-slip grip, wet or dry.
Waterproof/fogproof: Nitrogen filled and O-ring sealed.
Manufactured responsibly with lead and arsenic-free Eco-Glass™
Nikon Action EX 7x35 Specifications
| Magnification | 7 |
| Angular field of view (Real/degree) | 9.3 |
| Angular field of view (Apparent/degree) | 59.3 |
| Field of view at 1,000m (m) | 163 |
| Exit pupil (mm) | 5.0 |
| Eye relief (mm) | 17.3 |
| Close focusing distance (m) | 5 |
| Length (mm) | 120 |
| Width (mm) | 184 |
| Depth (mm) | 62 |
| Weight (g) | 800 |
| Interpupillary distance adjustment (mm) | 56-72 |
Features of the Nikon Action EX 7x35
- Waterproof (up to 1m for 5 minutes) and fog-free with nitrogen gas
- High-eyepoint design provides a clear field of view even for eyeglass wearers
- turn and slide rubber eyecups with multi-click positioning
- Multilayer-coated lenses coupled with large objective diameters for optimal image clarity
- Rubber armouring for shock resistance and a firm, comfortable grip
- Eco-glass optics are free of lead and arsenic
- Aspherical eyepiece lens eliminates any image distortion (7x50CF and 12x50CF only)
- Wide, comfortable neckstrap
- Can be fixed to a tripod using an optional tripod adapter (16x50CF includes tripod adapter by default)
$1,799.00
Monarchs are already well-regarded by birdwatchers and nature enthusiasts worldwide, but the Monarch HG 10 x 42 is on another level entirely. Made in Japan, the exterior and optics have been completely redesigned, now featuring a magnesium alloy body and metal eyecups for added resistance to wear and tear, multilayer coating on all lenses and prisms, extra-low dispersion (ED) glass, and a wider field of view than even the wide-field Monarch 7s.
The barrels are completely waterproof and fogproof down to 5m depth and 5000m altitude, while most exciting of all is the addition of a field flattener, which assures a sharp and clear view all the way to the lens periphery. The end result is a pair of binoculars which perform well above their price-range, and have to be seen to be believed.
Key Features of the Nikon Monarch HG 10×42
Wide apparent field of view (62.2° for 10×42). While realising a wide field of view, the Field Flattener Lens System assures a sharp and clear view all the way to the lens periphery.
Extra-low dispersion (ED) glass corrects chromatic aberration that causes colour fringing and realises a contrast-rich and high-resolution image
High-quality multilayer coating is applied to all lenses and prisms while dielectric high-reflective multilayer coating is applied to the roof prisms, achieving a bright view of up to 92% or higher light transmittance, and natural colour fidelity
Phase-correction-coated roof prisms for high resolution and contrast
Scratch-resistant coating is applied on the objective lens and eyepiece surfaces
Long eye relief design ensures a clear field of view, even for eyeglass wearers
Lead- and arsenic-free glass is used for all lenses and prisms
Turn-and-slide rubber eyecups with multi-click facilitate easy positioning of eyes at the correct eyepoint
Dioptre adjustment ring locking system prevents unintentional rotation
Sturdy, lightweight magnesium alloy body
Superior waterproof/fogproof performance with a nitrogen-filled body that resists water pressure to a depth of up to 5m/16.4 ft. for 10 minutes and prevents fogging inside the optical system even in low-pressure environments up to altitudes of 5,000m/16,404 ft. equivalent
Soft-to-the-touch neck strap
Objective lens caps are integrated to prevent loss
Optional tripod adapter enables attachment to a tripod [TRA-3/Adapter H (hard type)
Specifications
| MONARCH HG 10×42 | |
|---|---|
| Magnification (x) | 10 |
| Objective diameter (mm) | 42 |
| Angular field of view (Real/degree) | 6.9 |
| Angular field of view (Apparent/degree) | 62.2 |
| Field of view at 1,000m (m) | 121 |
| Field of view at 1,000yd. (ft.) | 362 |
| Exit pupil (mm) | 4.2 |
| Relative brightness | 17.6 |
| Eye relief (mm) | 17.0 |
| Close focusing distance (m) | 2.0 |
| Length (mm) | 145 |
| Width (mm) | 131 |
| Depth (mm) | 56 |
| Weight (g) | 680 |
| Interpupillary distance (mm) | 56-74 |
| Type | Roof |
Glassing out west demands an HD optic, but other systems can't get you the clarity you need to see a tail twitch in low light, or pick a tine out of dense cover. The redesigned Vortex Diamondback HD Spotter 20-60X85 spotting scopes have all the horsepower the long-distance hunter needs, and they excel in lowlight—right when you need it most. We've also streamlined the exterior for a sleeker, snag-free profile, building in a helical focus wheel.
OPTICAL FEATURES
Vortex Diamondback HD Spotter 20-60X85 Optical System has been Optimised with select glass elements to deliver exceptional resolution, cut chromatic aberration and provide outstanding color fidelity, edge-to-edge sharpness and light transmission.
Fully Multi-Coated Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
CONSTRUCTION FEATURES
ArmorTek ® Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt.
Waterproof O-ring seals prevent moisture, dust and debris from penetrating for reliable performance in all environments.
Shockproof Rugged construction withstands recoil and impact.
Fogproof Argon gas purging prevents internal fogging over a wide range of temperatures.
Rubber Armor Provides a secure, non-slip grip, and durable external protection.
CONVENIENCE FEATURES
Adjustable Eyecups Twist up and down for comfortable viewing with or without eyeglasses.
Helical Focus Allows for fast and fine adjustments.
Arca-Swiss Compatible Directly mounts to Arca-Swiss tripod heads without the use of additional plates. Also accepts 1/4-20 threads for use on alternate style tripod heads.
Tripod Adaptable Allowing use on a tripod or car window mount. Tripod adapter required.
Rotating Tripod Ring Allows rotation of the eyepiece to a sideways position, providing adjustable viewing angles.
Built-in Sunshade Reduces glare and shields the objective lens from raindrops and snow.
Specifications
| Magnification | 20-60x |
|---|---|
| Objective Lens Diameter | 85 mm |
| Linear Field of View | 108-60 ft/1000 yds |
| Angular Field of View | 2.1-1.1 degrees |
| Eye Relief | 20.3-18.3 mm |
| Length | 16 inches |
| Weight | 60.9 oz |
| Exit Pupil | 4.25‐1.41 mm |
| Close Focus | 24.6 feet |
Vortex Australian Warranty
Our warranty is about you, not us. It's about taking care of you after the sale.
The VIP stands for a Very Important Promise to you, our customers. We will repair or replace your Vortex product in the event it becomes damaged or defective—at no charge to you other then return post from you to us. It doesn't matter how it happened, whose fault it was, or where you purchased it. You can count on the VIP Warranty for all riflescopes, red dots, rangefinders, binoculars, spotting scopes and monoculars.
- Unlimited Lifetime Warranty
- Fully transferable
- No warranty card to fill out
- No receipt needed to hang on to
If you ever have a problem, no matter the cause, we promise to take care of you.
The VIP warranty does not cover loss, misuse, theft or deliberate damage to the product.
From $80.00
Optolong UV/IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of the image as most of the optics are designed for the visible spectrum, because it’s very difficult to create a lens with the same focal point for the visible and IR spectrum.
It is used on a digital camera and the video, which do not have an IR protection filter toward an image sensor or were remodeled. This is important because unfiltered CCD and CMOS sensors are extremely susceptible to UV and IR rays just outside the visible spectrum that can have a very negative impact on image quality.
Main Use and Performance
Suitable for color CMOS and CCD cameras and modified DSLRs.
Use with monochrome CCD for astrophotography.
Available to assist in focusing.
Act as an outstanding dust shield, which prevents the possibility of dust settling on the lens during long time exposure.
WARNING: The filters of Optolong are not designed for sun observation. DO NOT LOOK AT THE SUN WITH OPTOLONG FILTER. You would be BLIND if you fail to observe the warning.
Binoculars for the great Australia Outdoors!
Pentax's 10x50 S-Series SP Binocular features large oversized fully multicoated 50mm objectives to reduce reflection and maximize light transmission through the entire optical path. Utilizing the traditional porro prism configuration gives scenes a rich depth of view for an immersive observation experience and provides a comfortable feel in the hand with a lot of surface area to maintain a sure grip. The large objectives and coatings maximize the amount of light getting to the user's eyes for exceptional low-light capabilities, and its high 10x magnification provides an immersive observation experience whether users are bird watching or comet hunting.
Fully-multi-coated optics assure maximum light transmission resulting in high quality viewing. Every surface of every element is fully coated minimizing internal glare and flare and giving a bright clear view. Aluminum-diecast body adds strength and durability. View your subjects even in dim light with high-quality BaK4 prisms that transmit more light at the edges to enhance illumination.
| Product Type | Porro Prism, Centre Focus, Waterproof binocular |
| Focusing Range | 3.5m- infinity |
| Prism | Porro |
| Objective Lens Diameter | 50mm |
| Magnification | 10x |
| Real Field Of View | 5.0 degrees |
| Eye Relief | 20mm |
| Features | Waterproof, IPX7 |
| Weight | 900g |
| Field of view at 1000m | 87m |
| Exit Pupil | 5.0mm |
| Weight | 1063g |
$165.00
Get closer to the action while staying light on your feet. The Solo® 10x25 offers powerful magnification in a compact, rugged design ideal for travellers, hikers, birdwatchers, and outdoor explorers. Its bright optics and comfortable handling make it the perfect choice when you want detailed long-range viewing without carrying full-size binoculars.
Features & Technology
- SD Optical System – High-quality glass delivers sharp, bright images with reduced chromatic aberration.
- Fully Multi-Coated Lenses – Enhanced light transmission for improved clarity in varied lighting conditions.
- Rubber Armor – Durable, non-slip exterior for secure grip and added protection.
- Nitrogen Gas Purged – Fogproof and waterproof performance in changing environments.
- Waterproof & Fogproof – Ready for harsh weather and temperature shifts.
- Shockproof – Built to withstand bumps, drops, and tough field use.
What's in the Box
- Solo® 10x25 Monocular
- Neck Lanyard
- Soft Carry Case
Specifications
| Magnification | 10× |
| Objective Lens Diameter | 25 mm |
| Eye Relief | 15.0 mm |
| Angular Field of View | 6.2° |
| Close Focus | 16.4' / 5.0 m |
| Linear Field of View | 325' @ 1000 yds / 108 m @ 1000 m |
| Length | 4.9" / 124 mm |
| Weight | 9.3 oz / 264 g |
The Accura Traveller 70mm refractor delivers impressive optical performance in a portable package. With a 700mm focal length and fully coated glass optics, it achieves up to 210x magnification, ideal for lunar detail, planetary observation, and deep-sky exploration.
The included 3x Barlow lens and eyepieces (25mm, 10mm) provide flexible magnification options, while the red dot finder scope ensures quick target acquisition.
The 45° erect prism diagonal keeps views upright for terrestrial use. Lightweight aluminium tripod and carry case make transport effortless. Quick setup means more time observing. A capable choice for amateur astronomers seeking versatility without bulk.
Specs:
| Magification | 28X, 84X, 70X, 210X |
| Optical design | Refractor |
| Aperture | 70mm |
| Focal length | 700mm |
| Eyepiece | K25mm, K10mm |
| Barlow lens | 3X |
| Finder scope | red dot |
| Diagonal | 45 ° erect prism diagonal |
| Resolution | ≤ 3.1 |
| Viewing angle | 2 ° 24 |
| Tripod | Aluminum alloy tripod |
What's in the Box:
- 70mm Travel Telescope,
- Soft Carry Case,
- Correcting Prism,
- 2x Eyepieces,
- 3x Barlow Lens,
- Tripod, Mount,
- Red Dot Finder
$799.00
Nikon MONARCH M7 8 x 30 binoculars are ideal for bird and nature watching, stargazing, and a range of other outdoor activities.
The MONARCH M7 Series
The MONARCH M7 8 x 30 binoculars feature a sleek exterior design with a wide apparent field of view (60.3˚for 8x30) that offers spectacular viewing. An oil and water repellent coating is applied to the objective lens and eyepieces, allowing smudges like fingerprints to be easily wiped off.
Key Features
- Sophisticated exterior design for comfortable holding
- Extra-low dispersion (ED) glass for chromatic aberration compensation and brighter, clearer viewing
- Wide apparent field of view (60.3˚ for 8x30)
- Dielectric high-reflective multilayer prism coating ensures superior transmittance uniformity across the visible range, resulting in brighter images and more natural colours
- All lenses and prisms are multilayer-coated for brighter images
- Oil and water repellent coating applied to the objective lens and eyepieces allows smudges like fingerprints to be easily wiped off
- Phase-correction-coated roof prisms for high resolution
- Long eye relief design ensures a clear field of view, even for eyeglass wearers
- Dioptre adjustment ring locking system prevents unintentional rotation
- Waterproof (up to 1m/3.3 ft. for 10 minutes) and fog-free with O-ring seals and nitrogen gas
- Turn-and-slide rubber eyecups with multi-click facilitate easy positioning of eyes at the correct eyepoint
- Rubber armouring for shock resistance and a firm, comfortable grip
- Lightweight body uses fibreglass-reinforced polycarbonate resin
- Soft-to-the-touch neck strap
- Flip-down objective lens cap
- Optional tripod adapter enables attachment to a tripod
Specifications
| Monarch 7 Series | 8 x 30 | |
| Actual magnification | 〔×〕 | 8 |
| Effective objective diameter | 〔mm〕 | 30 |
| Angular field of view (Real) | 〔°〕 | 8.3 |
| Angular field of view (Apparent)*1 | 〔°〕 | 60.3 |
| Field of view at 1,000m | 〔m〕 | 145 |
| Exit pupil | 〔mm〕 | 3.8 |
| Brightness | 14.4 | |
| Eye relief | 〔mm〕 | 15.1 |
| Close focusing distance | 〔m〕 | 2.0 |
| Length | 〔mm〕 | 119 |
| Width | 〔mm〕 | 125 |
| Depth | 〔mm〕 | 48 |
| Weight | 〔g〕 | 465 |
| Interpupillary distance adjustment | 〔mm〕 | 56-72 |
| Waterproof structure | Waterproof (up to 1m/3.3 ft. for 10 minutes)*2, fogproof | |
| Prism type | Roof |
They are waterproof down to 2m for up to 5 minutes so there are no worries if you are caught out in bad weather. Twist eyecups make it suitable for eyeglass wearers.
Nikon Travelite EX 12x25 Features;
- Waterproof (up to 2m for 5 minutes) and fog-free with nitrogen gas
- Ashperical eyepiece lens eliminates image distortion
- High eyepoint design provides a clear field of view for those who wear eyeglasses
- Close focusing distance: 2.8m
- Multilayer-coated lenses for brighter images
- Turn-and-slide rubber eyecups facilitate easy positioning of eyes at the correct eyepoint
- Eco-glass optics are free of lead and arsenic
- Redesigned body enhances ergonomics
- Aspherical lenses minimise distortion and provide sharp images up to the periphery
- Multilayer-coated lenses for bright images
- Special rubber armour for shock-resistance and a firm, comfortable grip
- Carbon fibre in the body material improves durability
- Compact and lightweight
- Click-type dioptre adjustment ring prevents unintentional rotation
- Larger focusing knob for smooth operation
- Weight: 355 grams
The Hummingbird spotting scope shares many qualities with its namesake bird. In the wild, hummingbirds are known for their very small size, their agility (they can fly in most any direction at will), and their ability to travel long distances. The Celestron Hummingbird is the world’s first “micro” spotting scope well suited for hikers, birder watchers, and other wildlife watchers on the go.
Go “Micro”
Standard spotting scopes tend to be large and/or heavy, making them inconvenient to carry long distances in the field. The Hummingbird will shatter your expectations for how lightweight and compact a spotting scope can be, so you’ll take it places you never thought possible. You can easily hold this spotting scope in one hand, place it in a pocket, or pack it along in your carry-on luggage without compromising space.
Crisp, clear images
Although it is small, Hummingbird does not compromise on quality. All air-to-glass surfaces are fully multi-coated with high transmission optical coatings. The result is maximum light transmission for bright, sharp and contrast images. The prism is phase-coated BaK4, which increases contrast and resolution for sharper, more detailed images.
Durable, waterproof construction
The durable body of the Hummingbird works to keep the spotting scope protected against bumps and jolts both during transport and in the field. It’s also fully waterproof and nitrogen-purged, so you can use the scope worry-free in downpours, humid conditions, and other environmental challenges.
Ready for any adventure
The Hummingbird 9-27x56 spotting scope features a close focus of 10 feet, making it perfect for viewing birds, butterflies, plants, or other nearby subjects. The magnification of the 9-27x56mm spotting scope spans the standard magnification ranges of both a binocular and a spotting scope. No matter how you choose to observe, this versatile spotting scope is an excellent all-around performer.
Ways to observe
Unlike most spotting scopes, Hummingbird is so small that you can use it handheld at the lowest magnification level for a quick view of your subject. Travelers who want to save space can replace both their binocular and their spotting scope with this one optic. But the scope is also tripod adaptable, so you can secure it to a stable platform for comfortable long-duration or long-distance viewing.
Hummingbird provides plenty of eye relief for use with or without eyeglasses. For use while wearing eyeglasses, leave the twist-up eyecup in the lowered position. For use while not wearing eyeglasses, twist the twist-up eyecup into the extended position.
| GENERAL | |
|---|---|
| Magnification: | 9-27x |
| Objective Lens Diameter: | 56mm |
| Eyepieces: | 9-27x |
| Angular Field of View: | 4.2° - 1.9° |
| Linear Field of View @1000 m: | 73 - 32 m |
| Focal Length: | 200mm |
| Exit Pupil: | 6.2mm - 2mm |
| Eye Relief: | 15mm |
| Close Focus: | 3 m |
| Twilight Factor: | 22 - 39 |
| Relative Brightness: | 38 - 4 |
| Lens Coatings: | Fully Multi-Coated |
| Prism Glass (Type): | BaK4 |
| Prism Coatings: | Phase Coated |
| Weight: | 590 g |
| Environmental Protection: | Waterproof |
| Nitrogen Filled: | Yes |
| Tripod Adaptable: | Yes |
| Carrying Case: | Padded woven nylon |
| Camera Adaptable: | Yes |
| Dimensions: | 208mm x 127mm x 68mm (8.2" x 5.0" x 2.7") |
| Included Items: |
|
| Solar Warning |
|
Exceptional quality meets high-end expectations.
Pentax's 16x50 S-Series SP Binocular features large oversized fully multicoated 50mm objectives to reduce reflection and maximize light transmission through the entire optical path. Utilizing the traditional porro prism configuration gives scenes a rich depth of view for an immersive observation experience and provides a comfortable feel in the hand with a lot of surface area to maintain a sure grip. The large objectives and coatings maximize the amount of light getting to the user's eyes for exceptional low-light capabilities, and its high 16x magnification provides an immersive observation experience whether users are bird watching or comet hunting.
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).
$425.00
You know what they say about people who assume you can't get HD optics, rugged performance and high end form-factor in a value-price binocular? They clearly haven't checked out the Vortex Crossfire HD 12x50. Add in the included GlassPakTM binocular harness for quick optic deployment in the field and superior protection and comfort - The Crossfire® HD truly is a rare find.
OPTICAL FEATURES
Vortex Crossfire HD 12x50 Optical System Optimized with select glass elements to deliver exceptional resolution, cut chromatic aberration and provide outstanding colour fidelity, edge-to-edge sharpness and light transmission.
Fully Multi-Coated Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
CONSTRUCTION FEATURES
Rubber Armor Provides a secure, non-slip grip, and durable external protection.
Waterproof O-ring seals prevent moisture, dust and debris from penetrating the binocular for reliable performance in all environments.
Shockproof Rugged construction withstands recoil and impact.
Fogproof Nitrogen gas purging prevents internal fogging over a wide range of temperatures.
Roof Prism Valued for greater durability and a more compact size.
CONVENIENCE FEATURES
Adjustable Eyecups Twist up and down for comfortable viewing with or without eyeglasses.
Center Focus Wheel Adjusts the focus of both binocular barrels at the same time.
Diopter Adjusts for differences in a user's eyes. Located on right eyepiece.
Tripod Adaptable Compatible with a tripod adapter, allowing use on a tripod or car window mount.
Specification
| Magnification | 12x |
|---|---|
| Objective Lens Diameter | 50 mm |
| Linear Field of View | 273 feet/1000 yards |
| Angular Field of View | 5.2 degrees |
| Eye Relief | 15 mm |
| Height | 6.6 inches |
| Width | 5.3 inches |
| Weight | 836g |
| Exit Pupil | 4.2 mm |
| Interpupillary Distance | 60-76 mm |
| Close Focus | 6 feet |
Warranty
All Vortex products are covered by the Australian Vortex VIP Warranty
Our warranty is about you, not us. It's about taking care of you after the sale.
The VIP stands for a Very Important Promise to you, our customers. We will repair or replace your Vortex product in the event it becomes damaged or defective—at no charge to you other then return post from you to us. It doesn't matter how it happened, whose fault it was, or where you purchased it. You can count on the VIP Warranty for all riflescopes, red dots, rangefinders, binoculars, spotting scopes and monoculars.
- Unlimited Lifetime Warranty
- Fully transferable
- No warranty card to fill out
- No receipt needed to hang on to
If you ever have a problem, no matter the cause, we promise to take care of you.
The VIP warranty does not cover loss, misuse, theft or deliberate damage to the product.
The Benro Slim Aluminium Video Tripod Kit has plenty of advanced features, such as half turn twist leg locks, sliding Quick Release plate, 3 leg positions & bubble levels. It comes with an S2CSH Pan & Tilt video head & maximum payload of 2.5kg.
- Super slim profile shoulder design, making the video kit more compact when folded.
- With a 2.5kg max weight capacity this kit is not only ideal for photographers shooting stills or video, but is also the perfect lightweight and compact birdwatching tripod.
- ‘Half-turn’ twist leg locks make for fast and secure height adjustment, with rubber feet for extra grip on the ground.
- 3 leg positions – ideal for levelling on uneven ground.
- Staying level is made easy with bubble levels on both the tripod shoulder and the head.
- Supplied with a new compact version of the Benro S2 Pan & Tilt video head – featuring smooth damping for both pan and tilt movements, plus a sliding quick release plate for balancing kit.
- Carry case included.
- Maximum Load: 5.5 lb (2.5 kg)
- Weight: 5.5 lb (2.5 kg)
GERBER Spotting Scope 20-60x80mm
Table top tripod + mobile phone adaptor for taking photos
The GERBER 20-60x80mm is one of the most unique spotting scopes in the market. Economical and compact, it offers high magnifications in a 45 degree eyepiece design. The rubber armoured exterior is both, attractive and durable. The mini table-top tripod collapses flat for easy storage. A smooth focus provides crystal clear viewing, and the included carry case stores & protects the Scope when not in use.
- Coated optics
- Rubber armoured
- Includes the following: Table-top tripod, Carrying case, Lens cleaning cloth, Smart Phone Adaptor
Specifications
| Product SKU | GSS80 |
| Power | 20x - 60x |
| Objective Lens Diameter | 80mm |
| Type of Prism | Porro Prism / BaK-4 |
| Prism Coating | No |
| Number of Lens | 8 pieces 5 groups |
| Lens Coating | BMC |
| Focus System | Cent. |
| Focusing Lens | Int. |
| Exit Pupil Diameter | 4mm - 1.3mm |
| Exit Pupil Distance | 14mm |
| Field of View (Angle) | 1.8° - 0.9° |
| Field of View (M/1,000M) | 31.4m - 16m |
| Minimum Focal Length | 6m |
| Relative Brightness | 16 - 1.7 |
| Twilight Index | 40 - 69.3 |
| Resolution | ≤2.8" |
| Weather Proof | Yes |
| Water Proof | IPX5 |
| Nitrogen Filled | Yes |
| Eyecups System | Twist-up |
| Shipping Weight | 2.3kg |
| Warranty | 12 Months |
$45.00
Let Lonely Planet take you further than ever before with the world's first and only travel guide to the Universe. Developed with the latest data from NASA, we take you from our home on Earth and out into the far reaches of the solar system, then into our neighbouring stars and planetary systems, and finally into the rest of our galaxy and the Universe.
This fascinating journey will help you explore space as you would the world with a Lonely Planet guide. Unique to these pages are wonderful comparisons of Earth with the other worlds of our solar system and even those exoplanets orbiting other stars.
You'll discover as much as we know about our celestial neighbourhood, and our place in it. In addition to planets and moons, get to know our Sun, explore the asteroid belt and the Kuiper Belt, and learn what lays beyond, in interstellar space. Outside our solar system, travel to some of the notable neighbouring stars, stellar systems and exoplanets we've discovered. You'll understand how we search for planets where life might exist and the stars they orbit.
Finally, discover the edge of the observable Universe. Get to know the structure of the Milky Way as well as an orientation to neighbouring galaxies like the Andromeda Galaxy which is visible from Earth. Then explore other galactic formations and learn about galactic clusters and superclusters. By the end of the book, you'll have a sense for the structure of the entire Universe as well as some of the big questions we still have as we ponder our place in it.
Maintaining its appealing style and presentation, the Yearbook of Astronomy 2026 contains comprehensive jargon-free monthly sky notes and an authoritative set of sky charts to enable backyard astronomers and sky gazers everywhere to plan their viewing of the year’s eclipses, comets, meteor showers and minor planets as well as detailing the phases of the Moon and visibility and locations of the planets throughout the year. To supplement all this is a variety of entertaining and informative articles, a feature for which the Yearbook of Astronomy is known.
Articles for the 2026 edition include:
- Recent Advances in Astronomy by Rod Hine
- Recent Advances in Solar System Exploration by Peter Rea
- Anniversaries in 2026 by Neil Haggath
- The Astronomers' Stars: Taking It to Extremes by Lynne Marie Stockman
- Hawking Stars by Andrew D. Santarelli and Matthew E. Caplan
- Subrahmanyan Chandrasekhar and Professor A. S. Eddington by David M. Harland
- Planetary Protection: Keeping the Planets Safe from Earthly Bacteria by Peter Rea
- Nearby Worlds Out There: The Many Kinds of Exoplanet by John McCue
- Comets and Literature in the Nineteenth Century by Randall Stevenson
- On the Origin of NASA Names by Means of Imaginative Selection by Peter Rea
- Mission to Mars: Countdown to Building a Brave New World: Pausing for Thought by Martin Braddock
- A History of Observatory Designs: The Telescope Age from the Seventeenth to Nineteenth Centuries by Katrin Raynor
- Sidewalk Astronomy: Cosmos to Kerbside by Jonathan Powell
This iconic publication made its first appearance way back in 1962, shortly after the dawning of the Space Age. Now well into its seventh decade of production, the Yearbook continues to be essential reading for anyone lured and fascinated by the magic of astronomy and who has a desire to extend their knowledge of the Universe and the wonders to which it plays host. The Yearbook of Astronomy is indeed an inspiration to amateur and professional astronomers alike, and warrants a place on the bookshelf of all stargazers and watchers of the skies.
AUTHOR:
Brian Jones developed a fascination for astronomy at the age of five when he first saw the stars through a pair of binoculars, and his interest took him into the realms of writing sky guides for local newspapers, appearing on local radio and television, teaching astronomy and space in schools and, in 1985, becoming a full time astronomy and space writer. As well as being editor of the Yearbook of Astronomy since the 2017 edition, Brian has penned around 20 books to date which have covered a wide range of astronomy- and space-related topics for both children and adults. His passion for bringing an appreciation of the universe to his readers is reflected in his writing. The minor planet 45689 Brianjones is named after him.
100 colour illustrations
$155.00
The Astrozap AZ-150 Flexi-Shield® is a flexible dew shield purpose-built for the Celestron 9.25" Schmidt-Cassegrain, featuring both upper and lower dovetail notches for maximum compatibility across the current Celestron 9.25" range.
Fight dew, boost contrast
A dew shield is the simplest, most reliable way to keep the corrector plate clear during long imaging runs or cold observing sessions. The Flexi-Shield also blocks stray light from neighbouring street lamps and the Moon for noticeably sharper views.
Features
- Upper and lower dovetail notches fit both top and bottom rails
- Felt-lined interior for moisture control and contrast
- ABS polymer construction for long field life
- Padded VELCRO® Brand closure protects your tube finish
- Rolls flat for transport and storage
Compatible Celestron 9.25" telescopes
- CGX-L 925 SCT and CGX-L 925 EdgeHD
- CGX 925 SCT and CGX 925 EdgeHD
- CGEM II 925 SCT and CGEM II 925 EdgeHD
- Advanced VX 9.25" SCT and Advanced VX 9.25" EdgeHD
- NexStar Evolution 9.25
Proudly made in the USA.
$115.00
The Astrozap AZ-116 Flexi-Shield® is a flexible dew shield designed to fit Celestron 6" Schmidt-Cassegrain telescopes, with a notch to accommodate the side-mounted dovetail bar. It's an essential accessory for any SCT owner looking to extend observing sessions and protect image contrast.
Why you need a dew shield
Dew forms quickly on exposed corrector plates during cool Australian nights, cutting a session short. A dew shield slows dew formation by shielding the corrector from the cold night sky, while also blocking stray light from streetlamps and the Moon for noticeably sharper, higher-contrast views.
Key features
- Passive dew prevention that works without power or heaters
- Felt-lined interior absorbs moisture and suppresses internal reflections
- High-grade ABS polymer construction for durability in the field
- VELCRO® Brand fasteners with padded backing for a secure, non-marring fit
- Rolls up flat for easy transport to dark-sky sites and star parties
- Dovetail notch clears the Celestron finder shoe / side mounting rail
Compatible telescopes
- Celestron NexStar 6 SE
- Celestron 6" SCT OTAs
Proudly made in the USA.
The AS1715MC is a sensitive color camera with a 1/2.8" sensor and 8.46 megapixel resolution. With the Sony STARVIS technology used, this camera has low readout noise (0.72e) and ultra-high sensitivity, making it ideal for astronomical imaging of the planets and smaller
deep-sky objects and also for microscope photography.
High Transmission Speed The camera is equipped with a USB 3.0 transmission interface and a built-in 256MB DDR cache to ensure stable and secure
data transmission.
USB 3.0 Port & ST4 Guide USB 3.0 Port: Provides 5Gb bandwidth to allow AS1715MC to run at
45.1fps (10bit, high speed mode). ST4 Port: Can be used to connect with the auto guide port of mount
for guiding
.
Readout Noise Readout noise includes pixel noise, circuit noise, and ADC quantization noise. The lower the readout noise, the better. As can be seen, the readout noise of ASI715MC is very low. As the gain value goes high, the readout noise goes down.
Quantum Efficiency The QE curve and readout noise are very important parameters to measure the camera's performance. Higher QE and lower readout
noise are necessary to improve the image signal-to-noise ratio. According to our estimation, the QE peak value of ASI715MC is about80%.
Attaching your smartphone to a spotting scope to record close up detailed images of nature can be one of the most engaging and enjoyable experiences for any outdoor enthusiast, creating lasting memories and capturing incredible moments.
The SMARTOSCOPE VARIO-ADAPTER is designed to enhance the smartphone digiscoping experience to a whole new level by delivering a truly universal smartphone digiscoping solution that is engineered for maximum convenience and ease of use.
The SMARTOSCOPE VARIO universal smartphone digiscoping adapter is made with premium materials and built to last with a body crafted from aluminium and components made of high grade polyoxymethylene “POM-C”. Designed and manufactured in Austria. Our out of the box kits make it easy to find the right adapter for your spotting scope.
From $260.00
Optolong L-Pro 1.25 inch is multi-bandpass filter which offers better color balance by maximizing the transmission band. The balanced transmission allows astrophotos to be taken with minimal color cast to broadband emission objects such as galaxies, reflection nebulae and globular star clusters.
Warning - Do not use this filter for solar purposes !
Optolong L-Pro (L-Professional) filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high & low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photograghic purpose at sub-rural area with heavy light pollution.
Optolong L-Pro is multi-bandpass filter which offers better color balance by maximizing the transmission band. The balanced transmission allows astrophotos to be taken with minimal color cast to broadband emission objects such as galaxies, reflection nebulae and globular star clusters. L-Pro is the best choice for light pollution suppression.
- Optical glass fine material
- Spectrum: 380-750nm
- Surface Quality: 60/40 (Refer to MIL-O-13830)
- Fine-optically polished to ensure accurate 1/4 wavefront and < 30 seconds parallelism over the both surfaces
- High transmission at major nebula emission lines (i.e. H-alpha 656nm, OIII 496nm&500nm, SII 672nm and H-beta 486nm).
- Precision off-band blocking, specifically the major emission lines of artificial light pollution (i.e. Na 589nm, Hg 435nm and 578nm).
From $420.00
L-eXtreme is a two 7nm bandpass filter which can be used with one-shot color cameras like DSLR's (digital SLR), and monochrome CCD cameras, it is also more suited for fast systems. The convenience and cost effectiveness of this filter allows amateurs to image a rich emission nebulas, even in bright, light pollution skies. Optolong believes the design of L-eXtreme filter would be better choice for fast systems in competitive price. It isolates the H-Alpha, and Oxygen III nebula emission lines so that the contrast and signal-to-noise ratio between nebulae were maximized. For people who is living in very light polluted areas, or when the moon is out, the L-eXtreme will be a good filter.
Unlike the Optolong L-eNhance filter which is a tri-band (transmits Hb, Ha, and OIII), the L-eXtreme filter is dual band that passes Ha and OIII emission lines.The advantage of the L-eXtreme filter is that there is no transmission between the H-beta and OIII lines, as there is no nebula emission lines there. In this case, it isn't letting light pollution come through so that maximize nebulas signal and make the sky background darker while imaging. The L-eXtreme filter should better isolate the emission lines only and better protect from light pollution.
Hydrogen is the largest, the most primitive, the simplest, and the oldest element in the universe. Scientists consider that Hydrogen amounts to more than 90% of visible substance in space. Our sun is 5 billion years old, but so far hydrogen is still the key matter of nuclear fusion. While the sulfur element does not have much scientific significance, so keeping H and O is meaning for exploration of life.
Therefore, we highlight H-a, H-b, O3 and O2, and reduce the signal of sulfur.
Spectrum and Characteristics
- Sbustrate: B270
- Thickness: 1.85mm
- Tpeak: T>90%
- Blocking range: 300-1000nm
- Blcoking depth: light pollution line blocking >99%
- Surface quality: 60/40
- Transmitted Wavefront RMS: λ/4
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