Reducers, Flatteners and Correctors
This combination focal reducer and field corrector lens accessory works with all Celestron 5", 8", 9 1/4", 11" and 14" Schmidt-Cassegrain telescopes.
A must-have for serious planetary observers and photographers.
1:1 power flattener for the William Optics ZenithStar 61!
Field flattener optically matched for the ZenithStar 73.
This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7.5 ratio refactors.
This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics FLT91.
This revolutionary new WO FF68II Adjustable Flattener was made for 6 -7.5 F ratio refractors.
A reducer, as its name implies, "reduces" the focal length of your telescope by a set factor.
Superb quality, non-focal reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal ratios of between f/5.5 to f6.0.
The Explore Scientific 0.7x Reducer/corrector 3" reduces the effective focal length of a particular telescope by the factor 0.7x (for f/8) and 0.8x (for f/10) respectively.
STF 2" Reducers can be used with Maksutov-Cassegrain telescopes which feature with focal plane extension not less than 180 mm.
Paracorr - more stars, sharper stars, more time to observe.
Adjustable 0.8x Reducer/Flattener Flat61R for Z61