- Joined
- Sep 19, 2002
- Messages
- 135
Hmm. I asked you the question because my GW690 is right now full with a film so I cannot open it to see for myself. You would be maybe surprised to see that in some (all? - couldn't check it on my Fuji right now) 120 film cameras the film touches the film gate just on the longer dimension (the horizontal one), not on the short (vertical) one. The reason is that the constructors wanted to avoid film scratching while winding the film - the horizontal part can be scratched anyway, as it doesn't show on the picture, but the vertical part would be a disaster.
So it is for ex. on my Linhof 617 which served me as an example when I built my 6x24 roll film camera (that's how I discovered it). The vertical film gate is slightly off the film, not touching it. It doesn't allow for any light leak, surprisingly, as the off setting is small and the light from the lens is anyway cut off by the vertical edge efficiently. Needs to be seen to believe it. But I thought it could give the film picture actually a bigger length and make a difference of a few mm (?) if measured on the film or on the film gate...
So it is for ex. on my Linhof 617 which served me as an example when I built my 6x24 roll film camera (that's how I discovered it). The vertical film gate is slightly off the film, not touching it. It doesn't allow for any light leak, surprisingly, as the off setting is small and the light from the lens is anyway cut off by the vertical edge efficiently. Needs to be seen to believe it. But I thought it could give the film picture actually a bigger length and make a difference of a few mm (?) if measured on the film or on the film gate...