Will Canon Rebel XTi EF/EF-S lenses work on a future Canon mirrorless body?
Asked 8/1/2010
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I use a Canon Rebel XTi and own Canon EF/EF-S lenses. If Canon releases a mirrorless interchangeable-lens camera, would those lenses likely mount directly, need an adapter, or require replacing with new lenses?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
16y ago
2 Answers
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If Canon was to release a mirrorless body and wished to support the EF/EF-S lenses on it, it would require an adapter because the registration distance will have changed. Basically, the gain with mirrorless is a thinner body, so the optical construction of current Canon lenses wouldn't work for it out of the box.
Originally by user472. Source · Licensed CC BY-SA 4.0
user472
16y ago
0
Generated from our catalog & community — verify before relying on it.
Most likely, Canon EF/EF-S lenses would need an adapter to work on a Canon mirrorless body. Mirrorless cameras are designed with a much shorter flange/register distance because they do not need space for a reflex mirror. Canon EF and EF-S lenses were designed for DSLR bodies with a longer register distance, so they generally would not mount directly on a thinner mirrorless body without some kind of adapter.
That said, until Canon actually releases such a camera and specifies compatibility, no one can know for certain whether EF and EF-S lenses would be supported, or how well. So the safest conclusion is: expect an adapter if support exists, but wait for official details before planning to replace lenses.
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