> Evidently not all bayonet-mount VMC lenses were multicoated. > Here's the 135/2.3 in Olympus mount: > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2912232044&category=3344
Yes, but it ~might~ still be true that "all ~PENTAX~ bayonet-mount VS1 lenses are multicoated". Wasn't the OM-1 around a few years before the K-mount was introduced (maybe 1972 or 1973)? Heck, I think that Olympus was (maybe) already up to the OM-2 by the time that the KM, KX, and K2 came out. So, if I am correct (which happens once in a while - <g>), it is possible that Vivitar changed from singe-coated to VMC after the OM bayonet was released but before the K-mount was released. (Maybe...) Fred
