Hi,
I have a 12 inch Goerz Dagor 6.8 and it has the retaining ring to attach to a Copal 3 lens.
Is the retaining ring purely there to make the front and rear elements "grip" to the lens board?
Am looking to attach this lens to a bit of a DIY camera and the width of the retaining ring is getting in the way. If I was to screw the rear element into the shutter as far as it would go, would this still make the lens work? It seems when doing this that there is a small amount of space left for where the retaining ring would normally sit...
Sorry, probably bit of a basic question. Any help would be much appreciated!
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