I have a pair of Graphic "23" roll film backs (6cm x 9cm) that I use with my Galvin 2x3 monorail view camera and my 2x3 Crown Graphic mini-press camera. One back has a knob to advance the film, the other has a lever.
Last April (I think it was), I found a 6-year-old thread on photo.net that lead me to a PDF copy of an instruction brochure for these backs. While I was certain that I had saved it on my notebook computer (I was traveling at the time), I cannot find it. Worse, I cannot find that document again although Google reveals the thread.
Based on my obviously faulty recollection, I turn the indicator knob to align the "S" with the arrow while the insert is empty. I then load the film, insert the paper in the take-up spool, and turn until the arrows on the paper backing align with the arrow on the inside of the insert. The insert is set in the holder, and I work the knob/lever until "1" is aligned with the arrow.
The levered back requires me to move the silver release to the left before the lever will rotate and move the film; the knobbed back seems to have lost the catch for the lever, so I just turn it until the next number aligns with the arrow on the case. When I have taken frame number 8, I turn the knob/lever a dozen or so times to ensure that the paper is completely rolled onto the take-up spool.
What I find after developing the film is a half-frame at the front immediately followed by second frame (no spacing), uneven spacing, blank gaps, and other indicators of non-uniform film transport. I'd like to learn how to use these backs correctly, particularly the levered back so I can use it with my Crown Graphic as a travel camera. Hand-holding with sheet film worked for press photographers many decades ago, but roll film is much more convenient.
Suggestions, pointers, guidance, and help will be much appreciated.
TIA,
Rich
Last April (I think it was), I found a 6-year-old thread on photo.net that lead me to a PDF copy of an instruction brochure for these backs. While I was certain that I had saved it on my notebook computer (I was traveling at the time), I cannot find it. Worse, I cannot find that document again although Google reveals the thread.
Based on my obviously faulty recollection, I turn the indicator knob to align the "S" with the arrow while the insert is empty. I then load the film, insert the paper in the take-up spool, and turn until the arrows on the paper backing align with the arrow on the inside of the insert. The insert is set in the holder, and I work the knob/lever until "1" is aligned with the arrow.
The levered back requires me to move the silver release to the left before the lever will rotate and move the film; the knobbed back seems to have lost the catch for the lever, so I just turn it until the next number aligns with the arrow on the case. When I have taken frame number 8, I turn the knob/lever a dozen or so times to ensure that the paper is completely rolled onto the take-up spool.
What I find after developing the film is a half-frame at the front immediately followed by second frame (no spacing), uneven spacing, blank gaps, and other indicators of non-uniform film transport. I'd like to learn how to use these backs correctly, particularly the levered back so I can use it with my Crown Graphic as a travel camera. Hand-holding with sheet film worked for press photographers many decades ago, but roll film is much more convenient.
Suggestions, pointers, guidance, and help will be much appreciated.
TIA,
Rich