I have cut 8.5mm center and 10 cm corner side diameter, oval curved plane 6X30cm pinhole cameras internal two rails from matte plexi which was 3.5mm thick, for internal 120 roll film and its papers carrying and transferring in front of pinhole.
Camera is 6X30. Is plexi thickness enough to carry 120 roll film from upper side and lower side of the film surface in the camera without 120 roll film and paper wrapping or crashing or dropping ?
I have measured and copied the someones old basic blog post for above camera and 110mm is the longest focal distance of above oval rails and pinhole diameter should be approx. 0.490 mm
But blogger was used 0.550mm . Why is that ? Is there a logic which I dont know ?
Camera is 6X30. Is plexi thickness enough to carry 120 roll film from upper side and lower side of the film surface in the camera without 120 roll film and paper wrapping or crashing or dropping ?
I have measured and copied the someones old basic blog post for above camera and 110mm is the longest focal distance of above oval rails and pinhole diameter should be approx. 0.490 mm
But blogger was used 0.550mm . Why is that ? Is there a logic which I dont know ?
