As is often the case with the older Pentax sdm lenses, the af motor fails after a while. Fortunately these lenses contain a screwdrive motor too, so I have converted this and my 16-50 to screwdrive af and they now work perfectly albeit with a little more noise but with the same speed (as far as I can tell, possibly even a smidge faster). Otherwise in good condition with only minor marks or blemishes none of which affect image quality. I used this and the 16-50 which I’m also selling to photograph my sisters wedding with really good results. No fungus or major issues with the optics, some dust as always but much less than you would find in non weather resistant lenses.