I am interested in adapting lenses for 35mm systems for use with a LF system. The reason for doing this is, well in addition to finding myself a little project, I thought it might be interesting to get a circular image projected by 35mm lenses onto roll films (4x5 not necessary as the image circle usual won't exceed 55mm diameter). Mounting the lens should not be difficult; take the lens mount from a broken camera, screw it onto a lensboard of choice.
However, as for the shutter and the short distance between lens and film necessary to focus at infinity, I am at lost as to what the best solutions might be. Any suggestion, experiences welcome. Thanks in advnace.