Binoculars & Telescopes › Coma Corrector

Explore Scientific 2 HR Coma Corrector for Newtonians Explore Scientific 2 HR Coma Corrector for Newtonians more

Free Express Shipping! Alpine Astronomical Baader 2" Mark III Multi-Purpose Co... Free Express Shipping! Alpine Astronomical Baader 2" Mark III Multi-Purpose Coma Corrector for Dobsonian OTAs Visual and Astrophotographic Use, Use on f/3.5 - f/6 Fast Dobsonian OTAs, Ideal for DSLR Cameras or CCD Imagers, No Ghosting from UV/IR... more

Sky Watcher .85x Astro Imager Focal Reducer/Corrector PRO 120ED APO S20202. 85... Sky Watcher .85x Astro Imager Focal Reducer/Corrector PRO 120ED APO S20202. 85x Astro Imager Focal Reducer/Corrector minimizes focal length as well as delivers enhanced field-edge correction for telescopes. This Focal Reducer by Sky Watcher was also... more

[Pre Order - allow extra time] Celestron f/6.3 Reducer/Corrector For 5-14" Cat... [Pre Order - allow extra time] Celestron f/6.3 Reducer/Corrector For 5-14" Catadioptric Scopes, Widens Field of View, Shortens Exposure Times, Requires 93633-A Photo Adapter, Requires Camera-Specific T-Mount more

Free Shipping! Alpine Astronomical Glasspath Corrector 2.6x for Maxbright/Mark... Free Shipping! Alpine Astronomical Glasspath Corrector 2.6x for Maxbright/Mark V Binoviewers Corrects Chromatic Aberration & Fringing, Magnifies View by 2.6x Power, Enables Better Focusing Capability more

Celestron Aluminum Dew Shield And Cap 9.25in Black 94022. The dew shield reduc... Celestron Aluminum Dew Shield And Cap 9.25in Black 94022. The dew shield reduces radiative cooling of the Schmidt corrector lens to the night sky keeping the lens below the dew point longer and preventing dew from forming on the lens. The Aluminum Dew... more

DEMO Sky Watcher Quattro 150P Imaging Newtonian 6in S11205. Boasting a swift f... DEMO Sky Watcher Quattro 150P Imaging Newtonian 6in S11205. Boasting a swift f/4 focal ratio this astrograph can produce an exposure 6x faster than the average 8-inch f/10 Schmidt Cassegrain telescope (or 8.4x faster with the included coma... more

Celestron C6 - C8 Deluxe Flexible Dew Shield Black 94018. It prevents excess m... Celestron C6 - C8 Deluxe Flexible Dew Shield Black 94018. It prevents excess moisture in the air from forming condensation on the corrector lens. A dew shield also helps block stray light from entering the telescope for better viewing and astroimaging.... more

Celestron Aluminum Dew Shield And Cap 8in Black 94021. The dew shield reduces ... Celestron Aluminum Dew Shield And Cap 8in Black 94021. The dew shield reduces radiative cooling of the Schmidt corrector lens to the night sky keeping the lens below the dew point longer and preventing dew from forming on the lens. The Aluminum Dew... more

Celestron Aluminum Dew Shield And Cap 9.25in Black 94022. The dew shield reduc... Celestron Aluminum Dew Shield And Cap 9.25in Black 94022. The dew shield reduces radiative cooling of the Schmidt corrector lens to the night sky keeping the lens below the dew point longer and preventing dew from forming on the lens. The Aluminum Dew... more

Tele Vue's DIOPTRX 0.50 Astigmatism Corrector allows those with astigmatic vis... Tele Vue's DIOPTRX 0.50 Astigmatism Corrector allows those with astigmatic vision to enjoy a sharp viewing experience without having to wear their prescription eyeglasses. Use this 0.50 dioptric correction if your eyeglass prescription has the same... more

Free Express Shipping! Tele Vue DIOPTRX 2.25 Astigmatism Corrector 2.25 Dioptr... Free Express Shipping! Tele Vue DIOPTRX 2.25 Astigmatism Corrector 2.25 Dioptric Correction, Corrects User's Astigmatism, Eliminates the Need for Eyeglasses, Attaches Directly onto Eyepieces more

Free Express Shipping! Sky-Watcher S20201 Reducer / Corrector Designed for the... Free Express Shipping! Sky-Watcher S20201 Reducer / Corrector Designed for the PRO 100 ED APO, Focal Length Reduction - 0.85x, Provides Enhanced Field-edge Correction more

Free Shipping! Sky-Watcher Reducer/Corrector Adapter for Evostar 72ED For 0.85... Free Shipping! Sky-Watcher Reducer/Corrector Adapter for Evostar 72ED For 0.85x Reducer/Correctors, Installs onto Evostar 72ED OTA, Adapter Only more

[FACTORY REFURBISHED] - Sky-Watcher S20202 Reducer / Corrector -Refurb [FACTORY REFURBISHED] - Sky-Watcher S20202 Reducer / Corrector -Refurb more

Free Express Shipping! Tele Vue DIOPTRX 2.00 Astigmatism Corrector 2.00 Dioptr... Free Express Shipping! Tele Vue DIOPTRX 2.00 Astigmatism Corrector 2.00 Dioptric Correction, Corrects User's Astigmatism, Eliminates the Need for Eyeglasses, Attaches Directly onto Eyepieces more

[Pre Order - allow extra time] Tele Vue DIOPTRX 1.00 Astigmatism Corrector 1.0... [Pre Order - allow extra time] Tele Vue DIOPTRX 1.00 Astigmatism Corrector 1.00 Dioptric Correction, Corrects User's Astigmatism, Eliminates the Need for Eyeglasses, Attaches Directly onto Eyepieces more

[Pre Order - allow extra time] Sky-Watcher 0.9x Reducer/Corrector for Evolux (... [Pre Order - allow extra time] Sky-Watcher 0.9x Reducer/Corrector for Evolux (62mm) 62mm, f/5.8, 360mm Focal Length, 55mm Back Focus, 30mm Illuminated Field, M56x1 Female & M48 Male Threads more

Free Express Shipping! Explore Scientific Field Flattener for f/5 to f/7 Refra... Free Express Shipping! Explore Scientific Field Flattener for f/5 to f/7 Refractors Corrects Coma Aberration for Photography more

Free Shipping! Celestron Dew Heater Ring (5") Heats Directly to Corrector Lens... Free Shipping! Celestron Dew Heater Ring (5") Heats Directly to Corrector Lens, Permanently Mounts on Telescope Tube, Storage & Line Management Clips more