I possess a Canon EOS 1100D and I'd like to use some old lenses that were used on a non-digital Chinon CM-5. One of these lenses is Tamron, but with the same size of the Chinon ones. Do you know where I could find an adapter to use them on my Canon?
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7Possible duplicate of Is it possible to adapt lens from one brand into another brand's body? – Crazy Dino Jan 17 '18 at 10:15
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1Person who downvoted any chance you could provide clarification on why? Despite being a possible duplicate it's a perfectly reasonable question from a new user. – Crazy Dino Jan 17 '18 at 11:31
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Related: Can I use lens brand X on interchangeable lens camera brand Y? – inkista Jan 17 '18 at 22:13
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1Possible duplicate of Can I use lens brand X on interchangeable lens camera brand Y? – xiota Aug 21 '18 at 17:23
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The Chinon CM-5 uses a Pentax K mount and there are adapters available for about $15 to mount these lenses on your Canon 1100D.
Mike Butkus Camera Manual Library
Mike Sowsun
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The Chinon CM-5 apparently came in two versions that used either a Pentax K mount (a bayonet type mount) or a Pentax M42 mount (a screw mount).
You should be able to get adapter to either type for a Canon EOS, but you'll need to work out which of those two it is.
StephenG - Help Ukraine
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The CM-4 and CM-5 were both Pentax K mount only. The CS-4 was a M42 screw mount. – Mike Sowsun Jan 17 '18 at 12:40
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That's not my reading from online sources (none of which I'd regard as definitive). If you have a definitive source for that (only K mount, not M42) then please post it. In any case, it's pretty easy for the OP to tell a screw mount from a bayonet mount. – StephenG - Help Ukraine Jan 17 '18 at 12:53
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You can download the Chinon camera user manuals and check which mount each camera uses. http://www.butkus.org/chinon/chinon.htm – Mike Sowsun Jan 17 '18 at 15:18
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A lot of the confusion seems to stem from the term "Chinon Universal Bayonet Mount." which is most commonly referred to as M42. – StephenG - Help Ukraine Jan 17 '18 at 20:08
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1@StephenG The 'Chinon Universal Bayonet Mount' was identical to the Pentax K-mount. – Michael C Jan 17 '18 at 20:56
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1@StephenG Yes, many Chinon cameras used a M42 mount, but that is not the same as a bayonet mount. They are VERY different. I can't see anyone calling an M42 Screw Mount a Bayonet Mount. Where did you see "Chinon Universal Bayonet Mount" referred to as an M42 Mount? – Mike Sowsun Jan 17 '18 at 22:04
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According to Wikipedia Chinon CE-5
"The camera had a Pentax K mount (addressed to in the specifications as the Chinon "universal mount") with which its lenses were mounted."
So a Pentax K mount to Canon EOS adapter would be the way to go.
DwrCymru
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