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A lens mount is an interface, mechanical and often also electrical, between a photographic camera body and a lens. It is confined to cameras where the body allows interchangeable lenses.

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What are the clues to look at regarding how long Canon's EF/EF-S lens mount might be current? [closed]

I'm interested in buying a new lens for my Canon but am concerned the lens mount might be discontinued soon. The EF-S lens mount was invented in 2003, and the EF mount in 1987 (wikipedia). Electronics ...