4x5 calumet 6x7 roll film holder- a question

[EuGene Smith]

Vaughn:

Apparently I missed something . . . if I slide the holder into the camera, it will displace the ground glass away from the back of the camera, so when I look into the lens board opening I will see only the Calumet holder, as it is between the back opening and ground glass.

However, if I tape a piece of tracing paper over the opening, insert the Calumet (carefully to not tear the tracing paper) between the ground glass and tracing paper, or over the tracing paper using the Grafloc tabs, then I can mark the film opening on the tracing paper, remove the Calumet, then the tracing will be visible on the ground glass so I can mark it there.

Similar markings can be made for other Grafloc mount roll backs (645, 6x6, 6x12, etc) that you migh have.

[zack kl]

I still haven't shot anything film yet- tommorrow but I decided not to worry about if my matt was right as people mentioned the groundglass with markings on them for the various size backs so I figure they must be centered if not I will find out in my first roll shot and post the results if it is not centered. Thanks to all.
Zack