Open Box ES Field Flattener For f/5 to f/7 Refractors Color Camera Prominences

Prominences

allowing it to achieve 13 stops of dynamic range

the AM3 mount is considered multi-functional and can be used as both an equatorial and alt-azimuth mount

as the ambient temperature falls

Like the color version

Open Box ES Field Flattener For f/5 to f/7 Refractors Color Camera ProminencesCondition: 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