I have a little 90mm f9 Angulon in a Compur shutter. I think it has been dropped as one of the aperture blades has been displaced (which I can deal with) and there is some seperation between two elements in the front group. The seperation covers about a third of the interface between two of the elements and is only visible at about 45 degrees to the lens axis. Does anyone have any info as to what adhesive Schneider used on these lenses as, inspired by other posts on this site, I would like to attempt re-cementing the front group.
I haven't tried using this lens yet as I have to fix the aperture blades, so I don't know if the seperation has any real affect on image quality, but I suspect it will. If re-cementing is a no go then I'll bin the lens and salvage the shutter.
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