Focal Reducers

Designed for serious Astro-Imagers. Optimised for the Evostar-150ED PRO, this superb quality accessory effectively reduces the telescope’s focal length by a factor of 0.85x and provides much improved field-edge correction.

This Vixen Focal Reducer takes the standard 1800mm (f/9) focal length down to 1278mm (f/6.4). Increasing the field of view and decreasing the exposure time to dramatically increase your density or signal to noise ratio.

A common limitation that plagues owners of most popular Schmidt-Cassegrain telescopes is the narrow field size and high magnifications produced by their slow optical system (typically, f/10).

This 0.76x Reducer has been specifically designed for the ASKAR 80PHQ f7.5 APO telescopes to achieve a faster f/5.7 focal ratio.

The 2.5" 76EDPH f/4.5 full-frame reducer is dedicated for Sharpstar 76EDPH astrograph. At one end of the reducer, there is M74×1 thread, tapped for the connection to the 76EDPH’s reducer.

Brand new 0.8x adjustable reducer flattener by William Optics to suit the Zenithstar 61 series. Comes complete with integrated rotator and 2" filter holder.

Brand new 0.8x adjustable reducer flattener by William Optics to suit the Zenithstar 73 series. Comes complete with integrated rotator and 2" filter holder.

This 0.7x Reducer has been specifically designed for the ASKAR FRA400 & FRA500 f5.6 APO telescopes to achieve a very fast f/3.9 focal ratio and 280mm focal length for wide field full frame imaging.

Vixen's Reducer HD is used with the VC200L Optical tube. The focal length is reduced to 0.77x. This covers the photographic field of a DSLR camera with APS-C image sensor for prime focus astrophotography.

The 2.5" 94EDPH f/4.4 full-frame reducer is dedicated for Sharpstar 94EDPH astrograph. At one end of the reducer, there is M74×1 thread, tapped for the connection to the 94EDPH’s reducer

Turn your Meade Advanced Coma Free (ACF) telescope into an astrophotography overachiever with the Meade ACF 0.68x Focal Reducer w/ 50mm T-thread Adapter.

The Takahashi reducer/corrector 2" n°18 is designed to suit the Mewlon 180 and 210 series. This reduces the focal ratio by 0.8x. Made from ED glass for the highest quality.

This 0.7x Reducer of triplet optical construction has been specifically designed for the ASKAR 107PHQ and 130PHQ f7 APO telescopes to achieve a faster f/4.9 focal ratio

Takahashi reducer / corrector n°18 to suit the Tak Sky 90 and other refractors with focal lengths between F/4.5 and 5.6.

The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 800 one full f-stop faster than f/10, doubling the equivalent exposure at f/10. 4-element lens design.
Maintains similar flat-field performance as native EdgeHD optical design

The Explore Scientific 3in 0.7x Reducer - Corrector reduces the effective focal length of a particular instrument by the factor 0.7x (for f/8) and 0.8x (for f/10) respectively. The reducer/corrector not only reduces the focal length but also operates as a very effective field flattener.