I voted that it "never gets really that sharp" what might be a bit unfair, as my expectations were probably too high. I used it as my P&S camera (NOT the only camera) loaded with Ektar 100 for a 3 weeks trip in New Zealand. At f/2.8 this camera is VERY dreamy - suitable according to my opinion only to special stuff (portraits?), as one keeps stopping down the situation indeed improves and get reasonable by f/5.6 or so, but it never gets technically speaking really sharp. As I was doing mostly landscape stuff - it was not the best choice. But the tiny size had its advantages.
I did some 8x10" prints and had to do some clever sharpening before printing and the results are nice enough, but looking close - it could be better. But the way the camera "draws" is pleasant to me (actually surprising given the fact that the aperture is rectangular).
You can see some of photos
HERE, though none of the photos were taken wide open, as I was trying avoid that setting. More photos to come in the next days - some wide open too.
Still - I am rather sure that the performance will vary among the XAs. These little guys are turning 30 in between (as I am
😱 😛 ) so maybe a CLA can help to improve on the image quality side (have to ask my wife
😀).
A few more comments on the corners - there is quite some vignetting - especially wide open. Whlile this seem to vary from camera to camera, it is something that one should not forget about. I do some partial correction in PS afterwards, thos I do not attempt to remove all of it.