I built a 4x5 camera around a Linos XR-Heligon 95mm f/1.0. Used a Packard shutter & Graflok Back. The distance between the back of the lens and the image plane is about 25mm; which makes things really difficult.
It's setup to be able to shoot portraits. The lens's whole image circle is captured.
Fucking impossible to get focused. Over the next couple months I'm going to calibrate the focus.
This is what I'm going for with my custom lensboard: I was thinking about how the image circles for 35mm are way too small to use on a 4x5. But what if you used 3? You could get three overlapping images, like some ugly triptych.
Since I have a friend in engineering who has access to the shop, I figured it wouldn't be too expensive to produce. The only thing I'm not sure about is how to produce the threads for the lenses. I know that the threading of various 35mm lens mount standards must be a normal spacing (in mm or fractions of an inch). It has to be.
The serious flaw I foresee is that it will take 3 lenses of the same focal length to take properly focused pictures. I can't have wildly different focal lengths, unless I use extension tubes (which I have a few of, luckily).
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