BORG 7215 1.4x teleconverter DX works between 500 and 1000mm focal length. More suitable for full frame cameras and longer focal length telescopes than #7214.
- 36mm front lens diameter – large enough for full frame sensor
- M57 male : objective lens side
- M57 female : camera side
- Back focus distance : 60mm
- Quite flat illumination entire full frame sensor
- Carefully designed to minimize the internal reflections – perfect for the total solar eclipse