I recently purchased another G-Claron (240mm - sn 14,350,XXX). I noticed on this lens there is a brass spacer/washer between the front cell and the copal shutter. My other 'clarons', also late models, don't have this spacer. I did a web search and am a bit confused. Some posters (referring to Docter lenses) say to remove the ring to optimize the lens for infinity, others say to remove it for 1:5 (or closer). Any idea which applies to the Clarons?
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