Open Box ES Field Flattener For f/5 to f/7 Refractors GoTo 18") Focal Ratio: f/2

18") Focal Ratio: f/2

exclude counterweight Mount weight 17

68° Apparent Field Eyepieces

This is the scope only

Open Box ES Field Flattener For f/5 to f/7 Refractors GoTo 18") Focal Ratio: f/2PRICE DROP! Was $130, now just $100! Condition: 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