I bought the LTM version of the lens from Camera City, London. The viewfinder was a non-branded one and, I think it's a 15mm viewfinder (which I only realised when I got home!) Oh well, better than trying to get a shot from my R3A's 40mm view
So, here's one from my first roll with both my new Bessa R3A and Skopar 21mm. Shot with Kodak 400TX @ 1600 (because I thought I'd be trekking around London at night so pushed the film. I didn't).