I have a question about a problem with this lens: Auto Vivitar Wide-Angle 28mm 1:2.5 No. 22211258 F-stop range: 2.5-16 Filter thread: 62mm Fixed mount: Konica AR (including "EE" electronic exposure setting on aperture ring) Body length (when set at infinity): Approx. 2 9/16 inches I recently acquired this lens and was delighted to find it arriving in near-pristine condition, with clean, clear, excellent-looking glass; like-new feel to changing between aperture click stops, very SMOOTH feel to operating the focus ring, and perfectly responsive aperture change when moving the tab on the mount. Except for a couple of light scuffs on the focus ring's grip ridges, the lens could be described as "near mint." There is just one perplexing problem that I didn't notice until mounting it on my Konica Autoreflex T -- when I focus on things, the distances they are away from the lens are closer than the lens's distance scale says they should be. At the closest focus end of the range, it might not seem off so very much, but when I focus on something 10-to-12 feet away I find that I am bumping up against the infinity end of the scale ! ! ! The scale says that infinity focus is supposed to be somewhere beyond 30 feet. Due to weather the last couple of days, I didn't take it outside to find out just how out-of-focus things beyond 12 feet away might be. Has anyone else had this problem with this (or a similar) lens? I can imagine a problem like this in a lens that looks beat to heck and made grating or rattling sounds like the focus ring had been horsed around or pounded on with a pipe wrench, but how can such a good looking and smooth operating lens have such a problem? Anybody have a clue about how to fix it? I have found some decade old and older threads here talking about similar Vivitar f2.5 28mm lenses, but some of them are about a t-mount version, some are about a version with a 2.5-22 f-stop range, and some are about one that takes a 67mm filter. Some say they are made by Kiron, some say Kino. *Incidentally, I would have liked to have posted this in the Lenses category of the Equipment section of the forum, but I couldn't find such a category. Still, this Vivitar or its close cousins might be part of many members classic film camera kits either in a fixed mount or t-mount versions), and people with some experience and knowledge about it are who I want to address my question to.