Products

Helps prevent dew formation on the Schmidt corrector lens Prevents off-axis glare from entering the optical system Rigid body with a velvet-lined...

Fits 8” Schmidt-Cassegrain, EdgeHD, and RASA telescope tubes Helps prevent dew formation on the Schmidt corrector lens Prevents off-axis glare fr...

The Antlia OIII 2.5nm Ultra filter is made with quartz glass and undergoes precisely controlled coating processes to ensure optimal performance. T...

Antlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on u...

Antlia OIII EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwa...

Antlia SII EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwan...

This 2" mounted APT-T dual band 5nm filter is optimized to work with imaging systems slower than f/4. For faster optics from f/2.2 to f/3.6, the h...

ALP-T Dual Band 5nm Highspeed Filters # ALP-T-2-HS are further optimized to work with high-speed imaging systems by shifting slightly the passba...

AntliaThe Antlia LRGB-V Pro series filters are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF/KAI...

Antlia H-a, SII and OIII 2.5nm Ultra Filter - Extra Narrowband filters   2" mounted The Antlia SHO 2.5nm Ultra series filters are made with quartz...

The Antlia Triband RGB Ultra filter is designed for light pollution suppression for OSC and Mono cameras. The spectral design selected the most su...

With the Apex ED reducer, an f/5.5 apo refractor becomes an incredibly fast f/3.6 astrograph. A slower f/9 telescope like an RC becomes a speedy f/...

The SkyWatcher Esprit 120 and 150 require the Starizona ApexED 0.65x reducer to be placed farther back from the optical tube and when used with our...

The ApexEd Threaded Focuser Adapter currently comes in either stock Sky-Watcher Esprit and Explore Scientific focusers options. You can pick betwee...

APM Riccardi Universal APO Flattener 1.0x- Model 2 for APO Telescopes Our new, universal flattener for APO’s was calculated with the famous optical...

The Pocket Naturalist series introduces novices to common plants and animals and natural phenomena. Each pocket-sized folding guide highlights up t...

The Arizona Recreation Map is a folded map version of the Recreation Guide pages within our Arizona Road & Recreation Atlas. One side provides ...

12th edition, 2021. ISBN: 9781734315042 The Grand Canyon State abounds in natural beauty and outdoor recreation possibilities. Completely reworked ...

Get this must-have guide for Arizona, featuring full-color photographs and information to help you identify rocks and minerals. Identify and colle...

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The Askar 103 APO comes with three optional premium accessories, a 1.0x flattener, a 0.8x reducer, and a 0.6x reducer. Introduced here is the 0.6x ...

Askar’s new-launched 3” 0.7x full-frame reducer adapts for 107PHQ & 130PHQ. It has a triplet design with one ED glass. The 0.7x reduction gives...

The Askar 103 APO comes with three optional premium accessories, a 1.0x flattener, a 0.8x reducer, and a 0.6x reducer. Introduced here is the 0.8x ...

SPECIAL INTRODUCTORY OFFER (Valid until October 1) Get a FREE 32mm Askar Guidescope with each 103APO scope purchase Buy any one reducer or reduce...

As the first long-focal-ratio Flatfield astrograph from Askar, 107PHQ is born with a special mission: whether you are just getting started in astro...

Askar APO series is dedicated to enabling more users to own a high-performance astrograph. And now we launched the 120APO which has a bigger apertu...

The Askar 120 APO comes with three optional premium accessories, a 1.0x flattener and a 0.8x reducer. Introduced here is the 0.8x reducer，which is ...

130PHQ is a long-focal-ratio, flatfield astrograph newly launched after 107PHQ. Instead of buying extra flatteners, calculating the backfocus of fl...

151PHQ is a long-focal-ratio, flatfield astrograph newly launched after 130PHQ and also the biggest refractor of Sharpstar products till now. Inst...

The Askar 120 APO comes with three optional premium accessories, a 1.0x flattener and a 0.8x reducer. Introduced here is the 1.0x flattener， which ...

The Askar 103 APO comes with three optional premium accessories, a 1.0x flattener, a 0.8x reducer, and a 0.6x reducer. Introduced here is the 1.0x ...

The Askar 32 mm Guide Scope is lightweight and has a small, compact footprint. The fast f/4 focal ratio and 128 mm focal length produces a wide fie...

Users are often racked by the task of choosing and matching dazzling filters as well as adapters when it comes to using a filter drawer. It just be...

Askar provides a F3.9 full frame reducer for FRA400 Astrograph, further reducing the focal length and thus shortening the exposure time on its orig...

The FMA230 has a compound lens system. The front objective lens comprises three lenses and the posterior reducer is composed of four lenses and thu...

    The FRA400 quintuplet astrograph has adopted modern optical design with a retractable dew shield, a 3" rack-and-gear-based high-precision redu...

The Askar FRA500 90 mm astrograph boasts a 500 mm focal length, f/5.6 focal ratio, and is an excellent fit for those astrophotographers looking to...

The Askar Losmandy-style universal dovetail plate is made of lightweight aluminum ally and more resistant to scratches or collisions due to its an...

Large 10mm x 10mm prism Supports full-frame cameras Includes M42, M48, and M54 adapters  Black-anodized aluminum

Askar MCP150 (Multi-Connection Plate 150) is a professional design especially for FRA600/5.6 astrograph. But it also works well with other various ...

Askar V is a newly launched product concerning our customers' needs. It comes out with a big innovation, which means it has not only two objective...

Why an 1100GTO? The 1100GTO is a mid-sized observatory-class mount that will provide reliable operation in your distant, remote observatory *** or ...

Why an 1100GTO? The 1100GTO is a mid-sized observatory-class mount that will provide reliable operation in your distant, remote observatory *** or...

Why an 1100GTO? The 1100GTO is a mid-sized observatory-class mount that will provide reliable operation in your distant, remote observatory *** or ...

This revolutionary design has been enthusiastically praised for its ease of use and accuracy by customers in both the northern and southern hemisp...

Buy a brand new Astro-Smart 2 Channel Dew Annihilator Controller ( Model - M-DA). The M-DA can be setup with your telescope for trouble free operat...

The M-DA-3 can be setup with your telescope for trouble-free operation controlled manually by the supplied rotary dial. The Astro-Cube Dew Annihila...