Products

The Antlia ALP-T Dualband 3nm Ha&OIII Filter is a dual narrowband filter, which lets the red H-alpha (656.3nm) and the blue-green OIII (...

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...

The Antlia Quad Band Anti-Light Pollution Filter is a light suppression filter for color and monochrome cameras. It is able to shoot most deep sky...

  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 quart...

Antlia 3nm SII 671.6 - 2" Mounted Antlia 3nm Ha 656.3nm - 2" Mounted  Antlia 3nm OIII 500.7nm - 2" Mounted Application and Performance: High...

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

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

The Antlia V-Series Luminance filter is available separately for use as a high-quality UV/IR filter.

The Antlia V-Series Luminance filter is available separately for use as a high-quality UV/IR filter. Highlight of LRGB-V Pro series set 1. Premium...

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 works on a verity of focuser options. You can pick between M42 or M48 male camera facing threads. Each Threaded...

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...

Whether you’re in the field filling out a tag for that once-in-a-lifetime trophy or marking off your checklist of the never-ending chores that need...

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 ...

Pre-order for Askar 0.75x Reducer for 71F Telescope. More information coming soon!

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 3 inch F3.9 full frame reducer features 4 elements optical design specifically for the FRA600, offers a 0.7X reduction in focal ratio, wh...

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 ...