jolyonralph said:scyrene said:Surely the assumption is any FF mirrorless camera would use the EF mount, not EF-M?
It has been rumoured that the Canon could launch a mirrorless camera with the EF mount rather than using the EF-M mount, but I don't really see what benefit that would bring over a DSLR. I think it's inevitable that a FF EF-M mount camera will be launched. Maybe not in 2017 but in the future for sure.
The EF-M mount is full-frame capable already.
Well there are benefits to mirrorless, in principle, especially with regard to seeing a preview of the exposure in the EVF, in low light etc, and it can display more things, like focus peaking. Of course many still claim (I have no experience so can't say) that EVFs are still inferior in other ways. Mirrorless autofocus has some advantages, I believe, though again it cuts both ways. Also there are no moving parts. Many in these forums have said that if they switch to mirrorless in the distant future, they want to retain the DSLR form factor for ergonomics, so using a smaller mount wouldn't be such an issue.
The major disadvantage I see with them using the EF-M mount for a FF mirrorless camera is the lack of lenses. And why design and release a load of new more exotic EF-M lenses rather than making use of the excellent stable of EF lenses already available? Especially if there is no significant size/weight saving in those categories, like telephoto. EF-M makes sense for a small size system, but using it to replace EF is unnecessary in my view.
ahsanford said:jolyonralph said:This remains (IMHO) the single most important/impactful decision Canon will need to make for many years: what mount will FF mirrorless use?
This forum -- full of SLR enthusiasts and pros -- generally (about 2/3 of us) say that a full EF mount mirrorless is best for seamlessly useable 2nd body, best for seamless integration of existing glass, etc.... but we are not the entire market by a long shot. They may be gunning for day 1 early adopter spec sheet lunatic enthusiasts or the trust fund photography crowd (think Leica SL), which would imply the product isn't immediately aimed at us. Canon very well may 'go thin' and force EF users to use an adaptor.
Other than the Sigma mirrorless rigs that came our recently (the SD quattro rigs), which had the 'lens tube' like integral projection that maintained effectively a full lens mount without a mirror, no one else to my knowledge has gone the pragmatic route and kept a full mount for mirroless. That's been true in m43, APS-C, and FF so far.
So I would personally prefer a full mounted FF mirrorless setup, but everyone in the market thusfar has 'gone skinny' to chase a rather fleeting illusion of making things smaller and (in fairness) the neat trick of adapting other mounts' lenses.
- A
It does rather depend what this imagined future Canon FF mirrorless camera is meant to do. The skinny route is well trod, as you say. Whether that is profitable is the deciding factor of course, but there is still a hole in all the lineups - if mirrorless is meant to be the future, someone is going to have to release a DSLR-style mirrorless body for improved ergonomics in some circumstances (even handholding with a 100L is unpleasant on the EOS-M, let alone a 70-200 or larger), not to mention battery power and life.
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