Can Pentax K-mount lenses be used on a Canon AE-1?

Asked 10/12/2013

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I have two older Pentax lenses from my dad: an SMC Pentax-M 50mm f/2 and a Pentax 28mm f/2.8. I’m deciding between buying a Pentax MG or a Canon AE-1 film camera. I know the lenses will fit the Pentax MG, but can they be used on the Canon AE-1 with an adapter, or are they incompatible?

lens-compatibility adapters film-cameras canon-fd pentax-k

Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

12y ago

2 Answers

You need an adapter to mount Pentax K-mount lenses on any Canon camera body. The AE-1 is a Canon FD mount, so a search on Google for Pentax K to Canon FD will give you what you want.

Originally by user472. Source · Licensed CC BY-SA 4.0

user472

12y ago

AI Answer

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Your Pentax lenses are Pentax K-mount lenses, while the Canon AE-1 uses Canon FD mount. In practice, these lenses are not a practical match for the AE-1. While one reply suggests using an adapter, another notes that Pentax K to Canon FD adapters are not really available, and that’s the more reliable guidance here.

So if you buy a Pentax MG, your lenses should work. If you buy a Canon AE-1, you should plan on using Canon FD lenses instead, not your Pentax lenses.

If keeping and using those inherited lenses matters, the Pentax body is the safer choice.

Can Pentax K-mount lenses be used on a Canon AE-1?

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