Too much time on my hands, I guess. Tonight I laid three pinholes on my flatbed film scanner at 6400 dpi. 100% crops are attached. The ragged one I just punched in a piece of exposed 35mm film. The homemade one is made from 0.002" brass shim stock, and the Skink is a factory 0.2mm laser-cut job. I was curious as to how the home made one for my Nikon D200 (which is about 0.3mm and works great) would stack up against the laser cut $15 job from Skink (purchased for my Zorki-6 Leica copy). Actually, it turned out pretty good, but I have no idea how much sharpness I'm losing because of the non-perfect "roundness". I'll find out soon, because I have a laser-cut 0.3mm on order.