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09-06-2009, 01:12 PM   #1
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What mount could this be?

Hello, I would like to know what mount this is, and if I could convert it to K mount or M42..

It ressembles a lot to pentax, but there are some minor differences.

It is not ( but not 100% sure):
Canon, Nikon, Minolta, Olympus, Sigma, Exakta

Here's the link: Sigma mini-wide 28mm F2.8

Thanks for helping me.

09-06-2009, 03:11 PM   #2
Ash
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Listing's in German - can't help you there.
Can't tell either from the picture - too hard to tell.
Just ask the seller.
09-06-2009, 03:24 PM   #3
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The seller tells that he does not know which mount it is. At least we need a shot that is not straight at the mount, perhaps the aperture ring might tell the truth.
09-06-2009, 03:49 PM   #4
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The aperture ring? I'm learning some new things here Could you tell me how the aperture ring could help me identify this lens?

I guess I will receive it in a week or two. So then I could show you pictures from any angle of view.

And oh, it's not a Weitwinkel (or somthing like that) lens neither, and definitely not a C mount. But I'm interested about that aperture ring hint!

(just ordered a tool to remove dings I have a s-m-c takumar 50mm to repair and also
a asahi kogaku 100mm () , so at least, I can repair it and in the worst case, resell it.

09-06-2009, 04:11 PM   #5
pbo
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QuoteQuote:
Could you tell me how the aperture ring could help me identify this lens?
Aperture values go in different ways on different lens mounts. On Pentax, Nikon, and some other mounts, apertures go from smallest to largest, left to right. It's opposite on Canon FD, Minolta, and maybe some other lenses...
09-06-2009, 05:14 PM   #6
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Try this lens mount comparison guide SLR Lens Mount Identification Guide

Yours looks to me like an Olympus OM Mount.
09-06-2009, 06:09 PM   #7
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QuoteOriginally posted by monochrome Quote
Try this lens mount comparison guide SLR Lens Mount Identification Guide

Yours looks to me like an Olympus OM Mount.
Yeah i agree, i'm quite sure that lens is for Olympus camera with OM mount. As you can see reference image from this site :

QuoteOriginally posted by http://rick_oleson.tripod.com/index-99.html:


This is the Olympus OM mount. There have never been any variations of this mount; every OM lens fits every OM camera ever made. Note the lens release and stop-down buttons opposite each other, an easy identifying feature of the OM mount.
No doubt, they have the same 2 specific button on the apeture ring.
This is yours from quoted ebay:

Hope this will help you !
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