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$32Focal Reducer 0.5x 1.25"The 0.5x focal reducer provides a nominal reduction of 0.5 times and could screws on to any 1.25" eyepiece barrel. The actual focal length reduction will vary a little over or under 0.5x depending on where the focal reducer is placed exactly in the optical path.The reducer features 2-element fully m...Buy from Store ⊕ More like this 0 0 -
$59Focal Reducer 0.5x 2"The 0.5x focal reducer provides a nominal reduction of 0.5 times. The actual focal length reduction will vary a little over or under 0.5x depending on where the focal reducer is placed exactly in the optical path.The reducer features 2-element fully multi-coated optical design and blacked lens edges...Buy from Store ⊕ More like this 0 0 -
$159Focal Reducer 0.75x0.75x Focal ReducerDesigned for Ritchey-Chretien telescopes, this two-element optical component reduces the scopes effective focal length by 0.75x. It enables a wider field of view and shorter exposure times for astrophotography.For example, it converts an f/8 scope to f/6 or an f/9 scope to f/6.75,...Buy from Store ⊕ More like this 0 0 -
$159Coma Corrector 2"Suitable for Newtonian telescopes from f/4 and slower.This coma corrector can be placed completely inside a 2" focuser and offers a high grade of correction and also a low degree of vignetting. The generous back focus of 70mm allows the use of off-axis-guiders.M48 thread connection for good field il...Buy from Store ⊕ More like this 0 0 -
$329Celestron 0.63x Focal ReducerThis combination focal reducer and field corrector lens accessory works with all Celestron 5", 6", 8", 9.25", 11" and 14" Schmidt-Cassegrain telescopesThis makes it possible to have a dual focal ratio instrument, without sacrificing image quality. The Reducer/Corrector makes the C5, C6, C8, C9.25 and C11 a f/6.3 telescope and the C14 a f/7 C14 telescopeBuy from Store ⊕ More like this 0 0
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