$50 to $100

Description This adapter allows you to attach the 3-inch 0.7X Field Flattener Focal Reducer (FFFR507X-00) on optical tubes with a 2-inch focuser. ...

Description This adapter replaces the M42x0.75 Adapter for CCD Camera that comes standard with the Explore Scientific 3-inch Field Flattener/0.7x ...