BORG Field Flattener & Teleconverter
These days BORG flattener and teleconverter are more inquired than usually. Yes, they will be good optical accessories for the total eclipse. BORG’s correction lenses are well designed to minimize the ghost during solar imaging. These are 3 brothers.
7108 : 1.08x – 300mm to 800mm f.l.
7214 : 1.4x – 300mm to 640nn f.l.
7215 : 1.4x – 500mm to 1000mm f.l.
All 3 units fully covers the full frame sensor. If you wish to sharply capture the entire corona in full frame sensor, this should be the one. As described above, it works with various focal length of the scopes and 2″ nosepiece adapter(#7425) allows to insert into standard 2″ opening too. So well convenient and versatile.