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01-21-2011, 10:22 AM   #1
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Camera Mount

I bought this lens off of Ebay for $20. It's a Sigma 28-80 mm with macro. The seller said it was for a Pentax camera but i could not get this to mount to my K10D. Does anyone know what kind of mount this is?

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01-21-2011, 10:53 AM   #2
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Looks like an EOS mount to me, but I thought they had more contacts than that.
01-21-2011, 11:24 AM   #3
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its not an EOS mount (EF or EF-S) because this mount has no mechanical linkage what so ever, and this lens clearly has a linkage lever. its not a nikon F mount lens either.
01-21-2011, 11:28 AM   #4
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Probably a Sigma SA mount. Minolta A mount aka Sony Alpha mount.

50 Years of Lens Mount Evolution – Part V of VI


Last edited by boriscleto; 01-21-2011 at 11:34 AM.
01-21-2011, 11:30 AM   #5
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QuoteOriginally posted by boriscleto Quote
Probably a Sigma SA mount.
no, the SA mount is all electrical like the EOS mount and as far as I know always has been.
01-21-2011, 01:04 PM   #6
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It might be the old Mamiya bayonet mount.
01-21-2011, 02:12 PM   #7
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QuoteOriginally posted by boriscleto Quote
Probably a Sigma SA mount. Minolta A mount aka Sony Alpha mount.

50 Years of Lens Mount Evolution – Part V of VI
glad to see it identified, and thanks for that very helpful link!
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