Optical Accessories

This kit contains a methane filter, an AllSky lens and a lens adapter. It's made for the QHY5III462C camera only.

Individual inserts that allow the use of 1.25″ filters in threaded cells to be used instead of 36mm unmounted filters in the FW8-8300 and FW8S-Alum...

This is a 1.25″ screw-in filter cell for unmounted 1.1″ standard glass filters. The cell includes a retaining ring for holding the filter in place.

The new 3inch full frame reducer for 140PH APO is made of high quality metal, beautiful shape, the focal ratio is reduced from the original F6.5 to...

The 0.84x reducer can bring Sharpstar 50EDPH's focal ratio down to F4.6. This is a standard reducer with field flattening capabilities as well. A ...

The dedicated full-frame reducer of SHARPSTAR 61EDPH, which meets the need of full-frame photography. The reducer is equipped with a 2.3" tube, one...

SHARPSTAR 76EDPH F4.5 is the latest development in dedicated full-frame reducer, which meets the need of full-frame photography. The reducer is equ...

SHARPSTAR F4.4 Full Frame Focal Reducer made especially for 94EDPH refractor telescopes, it satisfy the demands of full-frame photography. The redu...

Designed to fully illuminate APS-C sensor on most APO refractors. The SharpStar 2" field flattener has a M42x0.74 male thread to connect the camera...

Designed to fully illuminate full frame sensor on most APO refractors. The SharpStar 2.5" field flattener has a M69 male thread to connect the came...

Following the advent of 0.95x coma corrector for Newtonian reflector, SHARPSTAR optics has well received the favor of customers with high praise.A...

0.9x thread-on reducer/corrector produces a flat field across the entire image while shortening exposure time by 24%. Optimized for Evolux 82mm re...

Compatible with both APS-C and full frame sensors, APS-C (crop sensors) and smaller recommended M48x0.75 thread 55mm back focus Drops f/ratio from...

Delivers stunning wide-field views with pinpoint stars to the edge of the field. Magnification remains unaltered.

0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 100 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 100 E...

0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 120 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 120 E...

0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 80 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 80 ED ...

FeaturesThe HyperStar 8 lens converts a standard Celestron 8" SCT from f/10 to f/1.9, making the system 25 times faster. That means 25-times shorte...

Starizona's SCT Corrector has been an incredibly popular focal reducer and coma corrector, giving astrophotographers with standard Schmidt-Cassegra...