Products

0.8x Field Flattener / Reducer for the 204mm 3 Glass Elements 55mm Back Focus, adjustable to 88mm Connects to our focuser by M63x1 Camera side: M48...

0.92x Field Flattener / Reducer for all APOs 2 Glass Elements ED 55mm Back Focus, adjustable T2 AP85 to 469mm f/5.5 AP95 to 529mm f/5.5 AP106 to 64...

1x-Flat Field for sharper stars all to way to the edge. Specifically made for the 60mm APO. Screws on to the M63x1-Thread. The spotdiagrams show ...

The 106mm Apochromat telescope is a dream come true for both astrophotography enthusiasts and visual observers who are seeking the utmost in cont...

The perfect telescope for the small home observatory The Airy Disk 140mm Apochromat represents a top-tier telescope designed to meet the needs...

Glass used:  HOYA FCD1, CDGMColor:  WhiteTube Material:  Aluminum alloyAperture:  152mmFocal ratio:  f/5Focal length:  750mmCoating:  Full sur...

Airy Disk's 8" triplet APO is a great telescope for observatories. It provides high-contrast imaging and guarantees genuine observing pleasu...

Optional 1x field-flattener for imaging with sensors up to APS-C format. Glass used:  HOYA FCD1, CDGMColor:  WhiteTube Material:  Aluminum alloyApe...

Portable 85mm Apochromat with ED lens made of Japanese glass  Enjoy crystal-clear observations and capture stunning astro photographs with the n...

A compact 96mm apochromat for powerful images A compact apochromat for powerful images This APO with a 96mm aperture offers This APO with a 9...

A compact 96mm apochromat for powerful images This APO telescope, boasting a 96mm aperture, presents a delightful combination of outstanding opt...

Fits 11” Schmidt-Cassegrain, EdgeHD, and RASA telescope tubes Helps prevent dew formation on the Schmidt corrector lens Prevents off-axis glare f...

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 Celestron Aluminum Dew Shield with Cover Cap is an essential accessory that protects your telescope tube in the field. The dew shield reduces r...

  The Antlia SHO 2.5nm Ultra series filters are made with quartz glass and undergo precisely controlled coating processes to ensure optimal per...

Antlia H-alpha Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro n...

Antlia H-alpha Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro n...

Antlia OIII Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nmbandpass. As the bandwidth becomes narrower, the 3nm Pro narr...

Antlia SII Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narr...

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 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 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...

The ALP-T dual band 3.5nm SII&Hb filter is a dual narrowband filter, which lets the deep red Sulfur-II 672.4nm and the blue Hydrogen-Beta 48...

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 Ha & OIII filter is optimized to work with imaging systems slower than f/4. For faster optics from f/2.2 ...

  ALP-T Dual Band 5nm Ha & OIII Highspeed Filters # ALP-T-2-HS are further optimized to work with high-speed imaging systems by shifting slig...

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...

Pollinators in Arizona include bats, bees, hummingbirds, butterflies, moths, wasps, flies, and beetles. These beneficial species are both beautiful...

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!