Focal Reducers & Reducers/Flatteners
Telescope focal reducers and correctors are indispensable for serious astronomers and astrophotographers. They significantly enhance their ability to explore and photograph the night sky. These tools expand the field of view, shorten exposure times, and guarantee sharp image quality
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Celestron 0.63x Reducer-Corrector for SCT (94175)
CelestronCelestron Reducer-Corrector F/6.3 for SCT Imagine having two telescopes in one — a long focal length instrument for lunar and planetary work and a ...
View full detailsStarizona SCT Corrector IV - 0.63X Reducer / Coma Corrector (SCTCORR-4)
StarizonaStarizona SCT Corrector IV 0.63X Reducer / Coma Corrector Performance The diagram above shows how the SCT Corrector improves the off-axis spot s...
View full detailsAntares 0.63x Focal Reducer for SCT (SCTFR)
AntaresAntares 0.63x Focal Reducer for SCT The Antares 0.63x Focal Reducer for SCT is the standard thread-on F/6.3 4-element fully multicoated reducer use...
View full detailsCelestron Reducer Lens .7x - EdgeHD 800 (94242)
CelestronCelestron Reducer Lens .7x - EdgeHD 800 Celestron’s new EdgeHD 800 Reducer Lens .7x feature a custom 4 element optical design engineered to mainta...
View full detailsSVBONY SV209 1.0x Flattener for SV550 80F6 M63x1 (W9161A)
SvbonySVBONY SV209 1.0x Flattener for SV550 80F6 M63x1 75 filter thread for the use of 2" filters in the camera adapter Maximum working distance from th...
View full detailsSharpStar 61EDPHⅢ f/4.5 Full-Frame Reducer (SHRD61III)
SharpStarSharpStar 61EDPHⅢ f/4.5 Full-Frame Reducer The special full-frame reducer of 61EDPH Ⅲ: One end of the thread is M68 × 1, connected to the focuser; ...
View full detailsAskar 103APO 0.8x Full-Frame Reducer (103APO-08-FFR)
AskarAskar 103APO 0.8x Full-Frame Reducer The 0.8x reducer can bring Askar 103APO's focal ratio down to F5.4. This is a standard reducer with field flat...
View full detailsAskar 0.75x Reducer for Askar 71F Telescope (ASKAR71FR)
Askar4.0 / 5.0
1 Review
Askar 0.75x Reducer for Askar 71F Telescope Get ready for brighter images and a wider field of view for your Askar 71F! More details on...
View full detailsAntares 0.5x 2" Focal Reducer (FR2-0.5)
AntaresAntares 0.5x 2" Focal Reducer Focal reducers can be used either visually or photographically to decrease focal length and increase true field at th...
View full detailsAskar 0.7x F/3.9 Full Frame Reducer for FRA400/FRA500 (FRA400FR)
AskarAskar 0.7x Full Frame Reducer for FRA400/FRA500 5.6 The Askar new FRA400/FRA500 F3.9 full-frame reducer reduces the telescope’s effective focal rat...
View full detailsCelestron Reducer Lens .7x - EdgeHD 925 (94245)
Celestron5.0 / 5.0
1 Review
Celestron Reducer Lens .7x - EdgeHD 925 Celestron’s new EdgeHD 925 Reducer Lens .7x feature a custom 4-element optical design engineered to mainta...
View full detailsSVBONY 1.25 inch 0.5x Focal Reducer (F9154A)
SvbonySVBONY 1.25 inch 0.5x Focal Reducer 0.5x focal reducer cuts the telescope's focal length in 0.5 times of original's to get a wider field of viewFul...
View full detailsSVBONY 0.5X Focal Reducer 1.25" (F9115A)
SvbonySVBONY 0.5X Focal Reducer 1.25" Fits all standard 1.25" scope eyepieces Its role is to shorten the focal length, increasing the field of view, usua...
View full detailsAskar 50EDPH 0.84x Reducer (50EDPH-FR)
Askar5.0 / 5.0
1 Review
Askar 50EDPH 0.84x Reducer The Sharpstar 50EDPH comes with an optional specific 0.84x reducer, which is optimized for the Sharpstar 50EDPH and can...
View full detailsAskar 103APO 0.6x Full-Frame Reducer (103APO-06-FFR)
AskarAskar 103APO 0.6x Full-Frame Reducer The 0.6x reducer can bring the Askar 103APO's focal ratio down to F4 while also providing field flattening. As...
View full detailsAskar 0.75x Full Frame Reducer for Askar 65PHQ Telescope (65PHQ-FFR)
Askar5.0 / 5.0
1 Review
Askar 0.75x Full Frame Reducer for Askar 65PHQ Telescope Askar’ s new-launched 65PHQ 0.75× full-frame reducer has a quadruplet design. The 0.75× re...
View full detailsAntares 0.7x 2" Focal Reducer (FR2-0.7)
AntaresAntares 0.7x 2" Focal Reducer The Antares 0.7x 2" Focal Reducer is the same 4-element f/6.3 lens system used for f/10 Schmidt-Cassegrain telescopes...
View full detailsSVBONY SV209 Focal Reducer/Field Flattener 0.8x for SV550 122F7 (W9161B)
SvbonySVBONY SV209 Focal Reducer/Field Flattener 0.8x for SV550 122F7 This 0.8X focal reducer/field flattener is designed specifically for prime focus as...
View full detailsStarfield 0.8x Reducer Flattener (FFR-08)
StarfieldStarfield 0.8x Reducer Flattener The Starfield Optics 0.8x Reducer Flattener is a must for anyone that is imaging with a DSLR or dedicated astronom...
View full detailsAskar 0.8x Reducer for 120APO Triplet Refractor (120APO-FR)
AskarAskar 0.8x Reducer for 120APO Triplet Refractor This 0.8x reducer from Askar will reduce the focal ratio of the Askar 120APO from f/7 down to f/5.6...
View full detailsCelestron Reducer Lens .7x - EdgeHD 1100 (94241)
CelestronCelestron Reducer Lens .7x - EdgeHD 1100 Celestron’s EdgeHD reducers feature a custom 5 element optical design engineered to maintain the flat-fiel...
View full detailsZWO FF65APO 0.75× Full Frame Reducer (F65RE)
ZWO2.0 / 5.0
1 Review
ZWO FF65APO 0.75× Full Frame Reducer ZWO has released a brand-new FF65APO 0.75× full frame reducer with a four-element optical design. It has a red...
View full detailsZWO FF107APO/FF130APO 0.7× Universal Reducer (F107130RE)
ZWO5.0 / 5.0
1 Review
ZWO FF107APO/FF130APO 0.7× Universal Reducer ZWO has released a new 3-inch 0.7× full frame reducer that is compatible with the FF107APO and FF130AP...
View full detailsWilliam Optics 0.8x Flattener/Reducer for Fluorostar 91 (P-FLAT6AIII-M92)
William Optics5.0 / 5.0
1 Review
William Optics 0.8x Flattener/Reducer Flat6AIII Special Edition For Fluorostar 91 All New Adjustable Flat6AIII with M92 thread adapter for use wi...
View full detailsSky-Watcher Reducer/Corrector (.85x) for Evostar 80 (S20200)
Sky-WatcherSky-Watcher Reducer/Corrector (.85x) for Evostar 80 0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 80 ED APO is designed for serious Astro-I...
View full detailsSky-Watcher 0.85x Reducer/Flattener for EvoStar 72ED (S20212)
Sky-WatcherSky-Watcher 0.85x Reducer/Flattener for EvoStar 72ED Compatible with both APS-C and full frame sensors, APS-C (crop sensors) and smaller recommend...
View full detailsAskar 0.7x Universal Reducer for 107PHQ/130PHQ/151PHQ (PHQ-07R)
AskarAskar 0.7x Universal Reducer for 107PHQ/130PHQ/151PHQ Askar’s new-launched 3” 0.7x full-frame reducer adapts for 107PHQ, 130PHQ & 151PHQ. It ha...
View full detailsStarizona Night Owl - .4x SCT Reducer Corrector (SCT-OWL)
StarizonaStarizona Night Owl - .4x SCT Reducer Corrector *** Currently Unavailable - Working on new regular and HD versions for 2023 *** With the 0.4x foca...
View full detailsTele Vue 400-600mm 0.8x Reducer & Flattener (TRF-2008)
Tele VueTele Vue 400-600mm 0.8x Reducer & Flattener The Tele Vue 400-600mm 0.8x Reducer & Flattener converts TV-85 to 480mm f/5.6 and TV-76 to 380m...
View full detailsTakahashi TOA-35 Reducer for TOA-130 (TKA31580NS)
TakahashiTakahashi TOA-35 Reducer for TOA-130 The TOA-35 Reducer is a 0.7X reducer for use with the TSA-120, TOA-130 and TOA-150 telescopes. The redu...
View full detailsSVBONY SV193 2-Inch 0.8x Focal Reducer/Flattener for SV503 ED Refractor
SvbonySVBONY SV193 2-Inch 0.8x Focal Reducer/Flattener for SV503 ED Refractor Designed specifically for SV503 70mm, 80mm, and 102mm f/7 ED Refractor.The ...
View full detailsStarizona SCT Corrector LF - Large Format 0.7x Reducer / Coma Corrector (SCTCORR-LF)
StarizonaStarizona SCT Corrector LF 0.7x Reducer Starizona's SCT Corrector has been an incredibly popular focal reducer and coma corrector, giving astrophot...
View full detailsOptec Lepus SCT (19402)
OptecOptec Lepus SCT Lepus-SCT 0.62X telecompressor lens designed especially for use with the Celestron or Meade Schmidt-Cassegrain Telescopes. Featurin...
View full detailsDaystar 0.5x/0.33X Imaging Focal Reducer (FR2DT)
DaystarDaystar 0.5x/0.33X Imaging Focal Reducer DayStar’s Imaging Focal Reducer can give you more field of view in your images. 2″ to T mount, with includ...
View full detailsAskar 80PHQ 0.76x Full Frame Reducer (80PHQ-FFR)
AskarAskar 80PHQ 0.76x Full Frame Reducer The Askar new 3 inch 0.76x full frame reducer,with a triplet design and specifically for the 80PHQ, offers a 0...
View full detailsAskar 0.8x Full-frame Reducer for 185APO (185APO-08XR)
AskarAskar 0.8x Full-frame Reducer for 185APO The Askar 185 APO comes with three optional premium accessories, a 1.0x flattener and a 0.8x reducer. In...
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