The 60 GPA field flattener corrects field curvature and coma while maintaining the native f/6 focal ratio, providing an image circle of about 44 mm and can meet the needs of full frame photography. It is connected to the telescope by thread connection (M54 x 0.75) by removing the 2-inch adapter, and works with the camera angle adjustment (CAA).

As the Sky Rover 60 GPA telescope has similar specifications to the Takahashi FS-60CB, this flattener can also be adapted to the FS-60.