SharpStar Field Flattener - 2.5"

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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 a dapter 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. Show more