Fred - I have an A version of your #3 - i.e., a VS 1 P/K-A R-P/K 70-210/2.8-4.0
As you described for the K version: no change in length when zooming, moving the zoom collar out takes you from 210 to 70. Other details: 62mm filter ring, macro focusing available at the 210 end of things, just under one turn from full macro to infinity. Stan on 1/29/03 1:13 PM, Fred at [EMAIL PROTECTED] wrote: > OK, I've started taking a few images of all the five Vivitar Series > 1 70-210 zoom lenses. (There are five versions, as far as I can > tell.) I'm also starting to collect factual information about each > of them, to eventually tabulate the similarities and differences. > Sometime soon I'll start taking some comparative photos ~with~ each > of them. Eventually, I'll end up with a web page about 'em, but > that's still coming... > > I've just posted three photos of the five versions. In each case, > the order, from left to right, is - > > 1. VS1 70-210/3.5 V1 > 2. VS1 70-210/3.5 V2 > 3. VS1 70-210/2.8-4 V1 > 4. VS1 70-210/2.8-4 V2 > 5. VS1 70-210/2.8-4 QDOS > > All five versions shown are K-mount versions (well, the last two > versions are actually Ka-mount lenses). > > The first photo shows each lens with its zoom collar extended as far > as possible, to show as much of the barrel markings as possible. > http://www.cetussoft.com/pentax/v70210s/vs1-70-210-1.jpg > > The second photo shows each lens zoomed to 70mm. Note that the > first three versions zoom to 70mm by extending the zoom ring, while > the zooming motion is opposite in the last two versions. > http://www.cetussoft.com/pentax/v70210s/vs1-70-210-2.jpg > > The third photo shows each lens zoomed to 210mm. Note that the > first three versions keep the same length while zooming, but that > the last two versions change length while zooming. > http://www.cetussoft.com/pentax/v70210s/vs1-70-210-3.jpg > > More later... > > Fred > >
