Flatteners, Correctors, Reducers & ADC

Explore Scientific Field Flattener f/5 to f/7   This is a field flattener for refractor-type telescopes with a focal ratio of f/5 to f/7 Causes no...

Takahashi 65D FU Reducer 0.65X Dedicated 0.65x RD-FU reducer for the FCT-65D telescope. New FU reducer series incorporates FLUORITE lens elements f...

SharpStar 2" 0.95× Coma Corrector Sharpstar 2" 0.95× coma corrector can be applied to most marketable Newtonian reflective astrographs. It’s of hi...

Askar 0.8x Reducer for 140APO Refractor Upgrade the already incredible optics of the Askar 140 APO Triplet Refractor with the Askar 0.8x Reducer! C...

Tele Vue Focal Reducer 0.8x for NP Scopes  In astronomy, a reducer is used to reduce the effective focal length of a telescope, which increases the...

Lunt 0.8X Reducer/Field Flattener for Nighttime Imaging with the MT80, MT100 & MT130 The CAA 0.8x Reducer/Field Flattener is an optimal accesso...

ZWO FF80APO 0.76X Full Frame Reducer ZWO has also released a new 3-inch FF80APO 0.76X full frame reducer with a three-element optical design, inclu...

Takahashi 1.01x Flattener for FSQ-85ED    The FSQ-85EDX's additional corrector to cover full-frame sensors With the continuous development of DSLRs...

Takahashi FL 0.93X Flattener This field corrector is specific to the FOA-60 refractor. It provides a corrected image circle of 44 mm in diameter, c...

Takahashi 0.7x Reducer TOA-35  The Takahashi TOA-35 0.7x Reducer for TOA-130, TOA-150 & TSA-120 consists of 4 elements in 3 groups and utilizes...

Takahashi 645 0.72x Reducer QE  The Takahashi 645 0.7x Reducer QE for FSQ-130 reduces the focal length of the FSQ-130ED telescope by 0.7X, increasi...

Takahashi 645 Reducer-CA 0.72X The Takahashi 645 Reducer-CA 0.72X reduces the focal length of the CCA-250 telescope by 0.72X, increasing the s...

Takahashi 0.73X Reducer CR The Takahashi Reducer CR 0.73X is a is compatible with the Mewlon 250 CRS and FSQ-106EDX4 telescopes, providing a f...

Takahashi F/3 0.6X Reducer for FSQ-106 & FSQ-130 The Takahashi F/3 0.6X Reducer for FSQ-106 & FSQ-130 converts the FSQ-106 and -130 refract...

Takahashi 645 Reducer-QE  0.72x  The focal reducer for medium-format imaging with the FSQ-106EDX4 refractor   The 645RD QE0.72x focal reducer is a...

Takahashi Reducer-QE 0.73x The Takahashi Reducer-QE 0.73x reduces the focal length of the FSQ-106ED and FSQ-85ED telescopes by 0.73X, increasing th...

Takahashi 0.72x Reducer-C for FS-60CB The RD C0.72X reducer is dedicated to Takahashi FS-60 refractors: FS-60CB, FS-60Q and old FS-60 models. The m...

Takahashi FC-35 0.66x Reducer The Takahashi FC-35 0.66x Reducer is a 0.66X reducer designed to work with the FC-100DF, FC-125, FS-102, FS-128 and F...

Takahashi 76D 0.73x Reducer   The classical focal reducer of Takahashi FC-76D and FC-100D refractors   The 76D RD reducer is dedicated to Takahashi...

Innovations Foresight Adjustable Focal Reducer - AFR - for ONAG Innovations Foresight provides a near infrared (NIR) optimized adjustable focal red...

Innovations Foresight Astigmatism corrector for ONAG XM and SC This 1.25″ astigmatism corrector drops in the ONAG XM and SC guider port focuser dra...

Optec Lepus HD - C8 EdgeHD Lepus 0.62X telecompressor lens designed especially for use with the Celestron EdgeHD C8 OTA. A standard SCT 2"x24tpi Ce...

Optec Lepus HD - C14 EdgeHD Lepus 0.62X telecompressor lens designed especially for use with the Celestron EdgeHD C14 OTA. A large 3-1/4 -inch Cele...

Optec Lepus-STL 0.62X Optec's #19405 Lepus-STL is a special version of the Lepus telecompressor featuring a male STL 2.156"x24tpi thread in place o...

Optec Lepus HD - C11 EdgeHD Lepus 0.62X telecompressor lens designed especially for use with the Celestron EdgeHD C11 OTA. A large 3-1/4 -inch Cele...

Optec Lepus HD - C9.25 EdgeHD The Celestron C9.25 EdgeHD OTA is unique among Celestron's EdgeHD models with a slightly slower primary mirror compar...

TEC ADC Adapter Set TEC is now offering the Baader 2″/T-2 Nosepiece and the Blue Fireball 2″ /T-2 Adapters for the Gutekunst Atmospheric Dispersion...

TEC Atmospheric Dispersion Corrector The goal of the atmospheric dispersive corrector (ADC) is to compensate the dispersive impact of the earth atm...

TEC 0.9x Field Corrector-Reducer Produced in house, the Field Reducer Corrector, flattens the field of telescopic viewing and reduces the focal rat...

Apex ED 0.65x Reducer / Flattener With the Apex ED reducer, an f/5.5 apo refractor becomes an incredibly fast f/3.6 astrograph. A slower f/9 telesc...

SVBONY 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 ...

PlaneWave .7x Reducer for CDK700 This reducer lens is designed specifically for flat field telescopes like the CDK700. Reduces the f/ratio of the ...

PlaneWave .66x Reducer for CDK20/ CDK24 The PlaneWave .66x Reducer for CDK20/ CDK24 is designed specifically for flat field telescopes like the CDK...

PlaneWave .66x Reducer for CDK12.5 / CDK14 / CDK17 This is a reducer designed specifically for flat field telescopes like the CDK. This reduces the...

William Optics 0.8x Reducer/Flattener 7A This William Optics Adjustable 0.8x Reducer/Flattener is a great tool for those looking to increase their ...

William Optics 0.8x Flattener/Reducer Flat6AIII This William Optics 0.8x Flattener/Reducer has been designed to optimize the flat-field imaging p...