Focal Reducers and Flatteners

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

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

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 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...

Celestron Reducer Lens .7x - EdgeHD 1400 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 5-element lens design Maintains similar...

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 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...

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 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...

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...

Sky-Watcher ProED 100 Reducer/Corrector (.85x)

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

Sky-Watcher ProED 80 Reducer/Corrector (.85x)

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...

Takahashi 35 Flattener (TSA/TOA)

Takahashi 645 REDUCER 0.7X (FSQ-130ED) Reduces the focal length of the FSQ-130ED telescope by 0.7X, increasing the speed of the optical system for astrophotography. Produces a 70 mm diameter image circle that is ideal for larger imaging chips.