Yesterday I spied a rather nice Leica M3 and 50mm Summitar, complete with Leica Meter, sitting in a camera shop in West London. Not a Leica dealer, however. I couldn’t resist having a look and found a good user M3, single stroke, from 1963, with a 1946 f/2 Summitar screw-mount lens attached. Old screw-mount Summitars are enjoying something of a renaissance, I recalled.....