Stellarvue SFF3-25-42 Field Flattener Field Flattener for 2.5" Focusers
|This thread on field flattener is made for Stellarvue f/7 refractors and is available in several physical configurations. |
This field flattener for Stellarvue f/7 refractors threads onto the rear of the Stellarvue or Feather Touch 2.5" focusers. It is available with either standard 42mm T-thread or 48mm wide T-thread output. This provides a completely threaded mounting solution for larger chip cameras when used a 2.5" focuser. Spacer rings and/or extension tubes may be required to achieve the proper spacing with your camera.