Open Box ES Field Flattener For f/5 to f/7 Refractors Color Camera allowing it to achieve 13

allowing it to achieve 13 stops of dynamic range

M4 through-holes

8 Image circle > 44mm Focuser 3

or scratches

Built in USB C and DC power ports on the dovetail saddle help keep cables organized

Open Box ES Field Flattener For f/5 to f/7 Refractors Color Camera allowing it to achieve 13Condition: This is an open box return in excellent condition. The outer body is unmarked and the optics are clean. Though, this is missing and does not include the M48 adapter. Otherwise it is practically new and includes the original box. Description: This is a field flattener for refractor type telescopes with a focal ratio of f 5 to f 7 Causes no change to the telescope focal length 2 inch barrel to easily attach to a two inch focuser Fully multi