- Joined
- May 10, 2013
- Messages
- 14
- Format
- Instant Films
I recently acquired a film back door with flat glass for my 2.8F. I tested it and found the all photos taken at large aperture (f2.8) is out of focus. I suspect the glass I got is not an authentic one. I guess the thickness is just not the same as the authentic flat glass. Could someone share their information on the thickness of the original flat glass?
