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Sharpstar 0.75x Focal Reducer for 61EDPH III Refractor

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SKU: SHS-61EDPHIII-FFR
$219.00

Add Apertura Lens Pen Optics Cleaning Tool to your order

$8.99
 

Sharpstar f/4.4 Full-Frame Focal Reducer for 61EDPH-III

This 0.75x, full-frame reducer for the Sharpstar 61EDPH-III reduces the focal length of the system to 270 mm, for a reduced focal ratio of f/4.4. This reducer adopts a 4-element, air-spaced, quadruplet lens configuration, with support for full-frame camera sensors. The lenses have full-surface, multi-layer coatings. In all, this reducer is a great choice when photographing deep sky objects.

One end of the reducer attaches to the focuser of the 61EDPH-III via M68x1 threads. The other end features M48x0.75 threads, with a built-in 2" filter thread. The reducer provides a standard backfocus of 55 mm.