I'm really stumped here.
This shutterless lens uncoated Schneider Super Angulon 65mm f8 (filter thread 49mm) which I have is mounted in a recessed board and fits fine onto a Sinar monorail which I use.
I've never needed anything wider than 90mm so when I switched to the 65mm with the wide-angle bellows, I was miffed to find that it won't focus at the closes lens-image distance on the monorail.
The only way I can get the image to focus is to tilt the lens standard by 7 degrees and the image standard by 7 degrees ; by then I can already start seeing vignetting on the screen at f8.
Any ideas or suggestions thankfully appreciated.
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