Oh, I definitely understand it's "an old lens" but I was still hoping for a nice surprise. (I bought a T-mount 135mm/2.8 at the same time, and I
think that one is really sharp --- haven't used it enough either, but I've liked what little I have seen!)
A bad sample: K10D, ISO 1600, f/4 (?), +1 EV compensation (not that that's bad), straight JPG with sharpness +1
Of course I realize ISO1600 might be having an affect on the image and, yeah, stopping down further should increase sharpness, but still I'd expect the image to be just a bit sharper looking with the +1 setting than it is. At the same time, though, it just hit me that some "clear" protective Toshiba filter that's probably as old as the lens is on it, so who knows how it affects the IQ (I don't have the lens near me to identify the filter). Hmm... Still wish it'd focus closer!
Another at mostly same settings, just maybe wide open. Wanted to see what bokeh would look like.