Here's the first photo I've seen where you can clearly see the VMC lettering (Vivitar Multi Coating), yet the glass looks yellowish, like a single-coated lens: http://cgi.ebay.de/ws/ebayISAPI.dll?ViewItem&item=2911988064&indexURL=2&phot oDisplayType=2#ebaylargephotohosting
I still find it strange; the VMC glass on my Vivitar Series One 28/1.9PK and 135/2.3PK is bluish. The glass on my 135/2.3 screwmount was yellowish but single-coated. 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 Can you see the VMC letters between 72mm and Vivitar? I can't. I just checked my 135/2.3PK: It says VMC (which I knew) but is decidedly yellowish (which I had forgotten). Kinda makes you wonder: Just how "improved" was the VMC coating over the single coating on these tele lenses? I have reported before that my now-sold screwmount 135/2.3 + K-mount adapter delivered about a half-stop faster shutter speed than my SMC 135/2.5PK, while my 135/2.3PK does not. [EMAIL PROTECTED]
