This makes pictures pretty nice, came from old plate camera in which the lens was pretty much only thing worth saving. I haven't made a focusing helicoid yet so it's still fixed focus (at around 4 meters, which at f8 is from sharp enough from around 3 meters to almost six, at f16 it's nice for pretty much everything mid range and at f32 sharpness is enough at infinity to work for me). It's not perfect, but works. Also I'm planning on adding focusing helicoid which would make life easier. Simply use cardstock or something to wedge the cameras shutter at bulb setting and then use rulex shutter on lens. Or use cameras autoexposure at f8. Lens doesn't quite cover 6x12, but it's enough (there's vignetting at corners). I consider to try other lenses at later date and I thought about taking the lens standard apart to remove inbuild shutter.. but that would be quite irreversible.