I have two shutters; both Synchro-Compur-P.
One of them has a decent - but currently redundant - Xenar 135mm f4.7; the other has an Angulon 90mm f6.8. The bad news is that the second shutter has timings all over the place while the first is fine. Since I have an alternate 135 in a Seiko shutter, I'd like to swap the Angulon into the shutter currently holding the Xenar; then at my convenience I can investigate sorting out the timing issues on the second shutter.
My understanding is that the lenses front and rear are simply screwed into the appropriate side of the shutter - is this the case? Or is there a hidden locking screw perhaps, or are thread lock compounds used? Or do my lenses simply not want to come to bits after sixty or seventy years?
I have located the Compur repair manual, but an initial scan doesn't suggest anything.
Any advice gratefully received...
Neil
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