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11-03-2012, 05:34 AM   #1
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Vivitar 28mm F2 problem

I bought a nice looking Vivitar 28mm F2 (apparently Komine made). Maybe I was too hasty though, as it does not fit on my Pentax.

Firstly, there is a protruding fixed metal pin near the aperture lever ( see the green arrow). Maybe it is part of the reason?
Secondly, no hole for the body locking pin, so obviously the lens cannot lock securely. The red arrow shows the usual place for it in PK lens. Maybe I could drill a hole.
This lens does not have the infamous 'ricoh pin'.

Is there a solution, or maybe this a Konica lens? As I have read in some places, K/AR can mean that a Ricoh lens aperture ring has an 'A' position (this has AE position). Or it can mean Conica Auto Reflex.

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11-03-2012, 05:39 AM   #2
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It is not a Pentax mount, K/AR is Konica.
11-03-2012, 05:41 AM   #3
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QuoteOriginally posted by elliott Quote
It is not a Pentax mount, K/AR is Konica.
Wow, that was a fast answer, thanks!

Just what i was afraid of.
11-03-2012, 05:47 AM   #4
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The seller advertised this as Ricoh Pentax K fit, so apparently I can send it back. This would be a nice glass to have though.

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