So I had my first outing this morning, went quite well. Only have the 50mm f1.4 SMC Takumar at the moment (waiting for some mounts to arrive) but stopped down a little works well & stopped a lot is surprisingly good. The M42 to K adapter is a bit of a pain as I didn't realise it stops on the body not the lens, see what you mean Michiel. (will have a look and see if anyone makes a 3rd party adapter that does). Anyway here is the 1st (pixelshifted) more to follow.....
K-1 50mm f1.4 SMC Takumar, River Wear.