SharpStar Field Flattener - 2.5"

Designed to fully illuminate full frame sensor on most APO refractors. The SharpStar 2.5" field flattener has a M69 male thread to connect the camera. It also comes with a 36.5mm adapter with a M48x0.75 thread to easily attach a camera to obtain a back focus of 55mm. A M68 male thread and a M63 female thread are on the telescope side.