Imaging resource had a chance to sit down with Canon engineers to discuss the development of the brand new Canon EOS system.
We cherry-picked a couple of our favourite questions and answers from the interview.
Does AF coverage change with EF-mount lenses?
Since EF-mount lenses used via the adapter are so much further from the sensor surface, it seems likely that they wouldn’t be able to support as large an AF area as native RF-mount ones. I asked, and it turns out this is true. It will vary some based on the specific lens design, but some EF-mount lenses won’t have quite as wide AF coverage as the native ones. Native RF-mount coverage is 100% vertically and 88% horizontally, but some EF-mount lenses will only have 80% horizontal coverage (again, depending on the specific lens design).
Why so many electrical contacts? (In regards to the RF mount)
The engineers didn’t go...
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