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12-09-2011, 02:09 PM   #1
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Please need help identifying mount

Hello everyone. The image below is of a Vivitar Series 1 100-400 4.5-6.7 Auto Zoom mount. Is that for a Minolta? Note the zoom drive shaft hole near the 6 o'clock position. The lock pin hole seems to be near the 10 o'clock and the 'red' docking guide is over by the 1 o'clock. I can't seem to match my AF Pentax lenses to those features. Thanks.

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12-09-2011, 02:55 PM   #2
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It's not Alpha mount, Nikon maybe? Typical crappy goodwill pic.
12-09-2011, 03:01 PM   #3
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Definitely Nikon AI (or some variant thereof). The giveaways are the "nub and arc" protrusions from the bottom aperture ring. Those protrusions can be dremeled off; the lens can be mounted (press-fit) onto PK pretty easily. For a secure fit, cut a slot or drill a hole for the PK locking pin to engage. Aperture and focus will be manual only.
12-09-2011, 03:09 PM   #4
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SLR Lens Mount Identification Guide

12-09-2011, 03:28 PM   #5
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It does look like Nikon AI (without rabbit ear) mount to me... the giveaway is the black plastic section at the base of the mount.
12-09-2011, 03:31 PM   #6
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thanks everyone.

pacerr - did have the mount guide link but none of the images presented matched the pic I provided. Should have included in my initial request. tnx.

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