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Reducers, Flatteners and Correctors

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Celestron f6.3 Focal Reducer

Celestron f6.3 Focal Reducer£125.00   £99.00

This combination focal reducer and field corrector lens accessory works with all Celestron 5", 8", 9 1/4", 11" and 14" Schmidt-Cassegrain telescopes. 

Celestron REDUCER LENS .7X for EDGEHD Telescopes

Celestron REDUCER LENS .7X for EDGEHD TelescopesFrom:  £275.00

Celestron’s new EdgeHD reducers feature a custom 5 element optical design engineered to maintain the flat-field performance of our award winning EdgeHD optical system.  

0.85x Focal Reducer/Corrector for Evostar-ED DS-PRO Telescopes

0.85x Focal Reducer/Corrector for Evostar-ED DS-PRO TelescopesFrom:  £169.00

Optimised for the Evostar-80ED PRO, reduces the telescope’s focal length by a factor of 0.85x.

M48 Field Flattener for ESPRIT-ED Triplet Refractors

M48 Field Flattener for ESPRIT-ED Triplet RefractorsFrom:  £119.00

Altair Astro ADC Atmospheric Dispersion Corrector

Altair Astro ADC Atmospheric Dispersion Corrector£105.00

The ADC corrects for atmospheric dispersion (rainbow effect) producing sharper images of object closer to the horizon.

ZWO ADC Atmospheric Dispersion Corrector

ZWO ADC Atmospheric Dispersion Corrector£107.00

A must-have for serious planetary observers and photographers.

William Optics Flat61 Flattener for ZS61

William Optics Flat61 Flattener for ZS61£169.00   £149.00

1:1 power flattener for the William Optics ZenithStar 61!

William Optics Flattener 73

William Optics Flattener 73£179.00   £159.00

Field flattener optically matched for the ZenithStar 73.

William Optics Adjustable Flattener 6A II

William Optics Adjustable Flattener 6A II£189.00   £179.00

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.

William Optics Flattener 68III

William Optics Flattener 68III£599.00   £579.00

This revolutionary new WO FF68II Adjustable Flattener was made for 6 -7.5 F ratio refractors.

William Optics x0.72 Reducer / Flattener 8

William Optics x0.72 Reducer / Flattener 8£699.00   £649.00

TeleVue 0.8x Reducer/Flattener

TeleVue 0.8x Reducer/Flattener£325.00   £306.00

Tele Vue 0.8x Reducer for NP Scopes (NPR-1073)

Tele Vue 0.8x Reducer for NP Scopes (NPR-1073)£317.00

APM Triplet APO Reducer

APM Triplet APO Reducer£589.00

A reducer, as its name implies, "reduces" the focal length of your telescope by a set factor.

Altair Astro Field Flattener for 60EDF Refractor

Altair Astro Field Flattener for 60EDF Refractor£110.00

This field flattener/reducer screws directly into the rear focuser rotator of your refractor, converting it into an astrograph with a flatter photographic field than the existing lens system alone.

OVL Field Flattener (with T-ring adaptor)

OVL Field Flattener (with T-ring adaptor)£79.99   £77.00

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.

Explore Scientific 0.7x Reducer/Corrector 3''

Explore Scientific 0.7x Reducer/Corrector 3"£312.00

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.

Meade f/6.3 Focal Reducer / Field Flattener

Meade f/6.3 Focal Reducer / Field Flattener£93.95

Improves edge-of-field correction and reduces exposure times by close to 50%.

STF 2'' Achromatic Reducer 0.8x

STF 2" Achromatic Reducer 0.8x£149.99

STF 2" Reducers can be used with Maksutov-Cassegrain telescopes which feature with focal plane extension not less than 180 mm.

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