Focal Reducers and Flatteners

Antares F6.3 focal Reducer for SCT   The Antares SCTFR is the standard thread-on F/6.3 4-element fully multicoated reducer/corrector used on F/10 Schmidt-Cassegrain telescopes. It is actually only a reducer, but it does increase true field at the...

Celestron Reducer Lens .7x - EdgeHD 800 The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 1400 one full F-Stop faster than f/11, reducing your exposure time by half to capture the same brightness of object 4-element lens design Maintains similar...

Celestron Reducer/Corrector f/6.3   This combination focal reducer and field corrector lens accessory works with all Celestron 5", 6", 8", 9 1/4", 11" and 14" Schmidt-Cassegrain telescopes. This clever accessory makes it possible to have a dual...

Sky-Watcher Field Flattener for EvoGuide 50   Corrects for field curvature, allowing the Evoguide 50ED and 50DX to be used for astrophotography Thread on metal caps T-thread connection or 1.25" opening for camera mounting 28mm imaging...

Antares 1.25in 0.5X focal reducer, m.c. m/f filter threads

Starizona SCT Corrector III - 0.63X Reducer / Coma Corrector Given small optical enhancements over it's predecessors as well as the standardization of the top thread to M42 for easier customization, this is the third installment of the SCT Corrector from...

Celestron Reducer Lens .7x - EdgeHD 925 The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 925 one full F-Stop faster than f/10, reducing your exposure time by half to capture the same brightness of object 5-element lens design Maintains similar...

  Introducing the 0.8x Reducer for NP Scopes Model NPR-2073 0.8x Reducer for NP Scopes is specifically designed to be used with the Tele Vue NP127is and NP101is Imaging System telescopes. This reducer was designed to minimize vignetting with camera...

Antares 2in 0.5X focal reducer, m.c. m/f filter threads

Takahashi Reducer-C (.72X) (FS-60CB ) Converts the FS-60C from an f/5.9 to an f/4.2 wide field imaging instrument. A 0.72X reducer.

Tele Vue 400-600mm 0.8x R/F

Celestron Reducer Lens .7x - EdgeHD 1100 The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 1100 one full F-Stop faster than f/10, reducing your exposure time by half to capture the same brightness of object 5-element lens design Maintains similar...

Sky-Watcher ProED 120 Reducer/Corrector (.85x)

Sky-Watcher 0.77x Reducer/Flattener for Esprit 150   36mm fully illuminated field, compatible with both APS-C and full frame sensors 90mm back-focus (55mm when back focus spacer and M48 ring installed) Drops f/ratio from native f/7 (1050mm) to...

Antares .7X focal Reducer for 2in m/f filter threads

Takahashi Flattener 1.01X for FSQ-85EDX