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08-16-2009, 08:25 PM   #1
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Vivitar Series 1 question

Feel kinda stupid for some reason. I just picked up a super clean Vivitar Series 1 70-210 f3.5 that says PK mount on the bottom. I can get it on my K1000, but it won't fit on my K10D. Here are some photos. I feel the flange is too large to sit properly on the K10D. Can this be changed/milled or should I just sell it. Not really into modifying cool old lenses. Anything helps.

Patrick





08-16-2009, 08:30 PM   #2
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Yes, you can mill the flange down. It is easier if you take the lens mount off - then you don't have to worry about debris falling into your lens while you are grinding the flange down. I had to do this to a Kiron 28mm F2.0 Vivitar lens I bought.
08-16-2009, 08:39 PM   #3
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You can mill the flange . . . .

or sell the lens and buy my Series 1 70~210/2.8~4 ver. 3 .

It has A contacts and doesn't have that huge flange .
08-16-2009, 08:44 PM   #4
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what do these go for these days?

08-16-2009, 08:58 PM   #5
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Just take the flange off. There are 3 itty bitty screws perpendicular to the lens axis.
08-16-2009, 09:02 PM   #6
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QuoteQuote:
Just take the flange off. There are 3 itty bitty screws perpendicular to the lens axis.
Yay! Finally! Someone else who knows about those three screws!
That's what I've been telling everybody with this problem, and so far seems like we two are the only who know about it.
08-16-2009, 09:16 PM   #7
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QuoteOriginally posted by pbo Quote
Yay! Finally! Someone else who knows about those three screws!
That's what I've been telling everybody with this problem, and so far seems like we two are the only who know about it.
Much easier than milling it down. Although I don't what the potential issue is could be with removing that flange. Maybe reflections?
08-16-2009, 09:20 PM   #8
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QuoteOriginally posted by pdxbmw Quote
what do these go for these days?
They range from $35 for a beater with some zoom creep to $150 pristine, no zoom creep (rare for a 30-year-old lens) and including the case. Mine is in the expensive category - almost perfect. I was actually half-kidding. If you remove the flange (don't destroy it) and you like the lens, you can replace the flange, sell it and upgrade. These are fabulous zoom lenses - pehaps the Pentax A 70~210 is equal and the Tamron #19AH is the only better zoom in this FL and price range.

Here's a link to PDML member Mark Roberts' discussion of the Vivitar Series 1 70~210 zoom lenses - it is more than you need to know but less than you'll want to know Mark Roberts' Vivitar 70~210 Series 1 Zooms Page

08-16-2009, 10:18 PM   #9
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I just took the flange off with the three screws and it works great. I will need to try it in the daytime. Seems like fun it will be fun. Odds are it will be for sale as I mainly shoot with primes. This is my only zoom lens. Patrick
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