Focal reducer

A focal reducer is a lens system that mounts on the rear cell of a scope in front of a flip-mirror, camera, or diagonal and eyepiece. It acts as a “wide-angle converter” and changes the focal ratio, or if you prefer, the effective focal length of a scope. It is particularly useful when using affordable CCD cameras because they have small CCD chips and thus do not view a large area of sky. Most deep-sky objects (nebulae and galaxies) are larger than this view and you need a focal reducer to fit them on the CCD chip.  Note that a focal reducer is actually the worse thing you can do for planetary photography - planets are small and need magnification (increasing the focal ratio of a scope, for example with a barlow lens), not reduction. But if you plan to do deep-sky photography with a CCD you probably will need to get a focal reducer, especially if you don’t have (or can’t use, in the case of Meade SCTs) the Celestron Fastar system. Because they increase the effective viewing area of a scope, focal reducers have the benefit of increasing the scope’s optical (and thus photographic) speed which is beneficial for dim deep-sky objects especially if you are using 35mm film.



Product Image Item Name- Price
Baader Planetarium Alan Gee Telecompressor

Baader Planetarium Alan Gee Telecompressor

Baader Planetarium Alan Gee Telecompressor Mk II A common limitation that plagues owners of most popular Schmidt-Cassegrain telescopes is the narrow...
R4,425.00

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Celestron Focal Reducer/Field Corrector Lens F6.3

Celestron Focal Reducer/Field Corrector Lens F6.3

Celestron Focal Reducer/Field Corrector Lens F6.3, For Celestron 5", 8", 9.25", 11" and 14" Schmidt-Cassegrain telescopes. ...
R3,545.00

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Celestron Neximage Reducer Lens

Celestron Neximage Reducer Lens

Celestron Neximage Reducer Lens. Increase your field of view by over two times for wide field lunar and filtered solar imaging.  Replaced the...
R795.00

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Celestron Reducer Lens .7x for X HD 1400

Celestron Reducer Lens .7x for X HD 1400

Celestron Reducer Lens .7x for Edge HD 1400 Features: The Celestron Reducer Lens .7x - EdgeHD 1400 Makes Your EdgeHD 1400 One Full F-Stop Faster Than...
R11,595.00

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GSO 1.25" 0.5x/0.3x Focal Reducer w/ext

GSO 1.25" 0.5x/0.3x Focal Reducer w/ext

GSO 1.25" 0.5x/0.3x focal reducer with extension tube fitted. GSO new 0.5 focal reducer could screw onto any 1.25" eyepiece barrel and...
R675.00

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GSO 2" 0.5x Focal Reducer

GSO 2" 0.5x Focal Reducer

GSO 2" 0.5x Focal Reducer GSO's new 2" 0.5x focal reducer screws on to any accessory (such as eyepieces, camera adapters, etc.) that...
R1,325.00

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GSO 25mm Extension Tube 1.25" for 0.5x Focal Reducer

GSO 25mm Extension Tube 1.25" for 0.5x Focal Reducer

GSO 25mm Extension Tube 1.25" for 0.5x Focal Reducer Extension tube with reciprocal filter thread.  This adapter proved very important within...
R195.00

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