Sharpstar 2" 0.95x Reducer and Coma Corrector for f/3 to f/6 Newtonians for APS-C Sized Sensors

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This coma corrector that also serves as an optical reducer, has been designed for commercially available Newtonian telescopes with an aim to improve their performance for imaging.

Its 2" size offers a 28mm diameter corrected field suitable for imaging with an up to APS-C sized sensor. It is compatible with most Newtonian telescopes that you can buy in a telescope shop with f/3 to f/6 focal ratio and between 150mm and 600mm aperture.

It will reduce the required exposure time by changing an f/4 system into f/3.8, f/5 into f/4.75 and f/6 into f/5.7. It will also improve the image quality of the periferial stars. A star in the center can be as small as 10 microns.

SPECIFICATIONS

Model：150mm-600mm, paraboloid reflector
Focal ratio：F3-F6
Magnification: 0.95x
Image Circle: 44mm,the optimal Image of 28 mm.
Number of lenses: Triplet
Outer diameter mirror:2"
Back focus: 56mm
Overall Length: 79.7mm
Optical Coatings: Fully multi-coated
Weight: 0.22kg

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