AstroNZ GSO 0.5x Focal Reducer 2"
The reducer uses a 2-element fully multi-coated optical design and blacked lens edges in a black anodize aluminum filter cell.
It comes with outside thread M48x0.75 to fit with most 2" eyepieces the additional 2" filter thread inside accept all kinds of 2" color filters
NB: 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
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