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Will Canon's FF Mirrorless be EF or EF-M Mount?

Started Dec 27, 2017 | Polls thread
davev8
davev8 Veteran Member • Posts: 4,833
Re: It will have to be EF-M

Photato wrote:

davev8 wrote:

Photato wrote:

pawn wrote:

caterpillar wrote:

The Fat Fish wrote:

Hi all,

A couple of months ago I asked what mount you wanted for Canon's upcoming professional full frame mirrorless camera. The majority voted for EF although it was close. What I want now want to know is what you now think it will be, not what you want it to be.

So, what mount do you THINK it will be?

It will have to be EF-M. Because if it will remain EF/EF-s:

- It will not get the best in performance of MILCs

Can you please elaborate this point?

Every single one of the EF-M lenses is sharper than the EF-S and EF equivalent with rare exceptions.
I think this is due to less "diffraction" given the shorter flange back distance that mirrorless allows, 18mm vs 44mm for EF/EF-S

no the sharpness is good with M lenses because they are all new optical designs...and 18mm is equivalent to around 28mm not 44 .....the closeness of the rear element can give problems with the sensor in the corners or close to the edge with the acute angle of the light ..this can cause vinegrating or color shifts ...modern sensor compansit with the micro lenses and some cameras heverly correct for theas defect in camera especially sony ..the M3 can have colour shifts for this reason

No true, you can compare newer EF lenses with EF-M and the M comes up sharper.

which lenses ...

EF-M is not inherently more prone to Vignetting since the throw angle from the rear element could be the same as EF-S, the shorter flange back distance or mirrorless doesn't preclude you with steep throw angles but it still remains an option should you need a cheap compact design. Some of the Canon EF-M lens vignetting (like the 22 f2) is simply Canon compromising on weight and size.

With Mirrorless you are not restricted to the 18mm flange back distance, you can design lenses with a distance of 55mm if your optical design calls for it, the reverse can not be said for the EF mount.

yes it can ...you forget there is now no mirror on a EF mount MILC

Leica rangefinders have no mirror they have been mounting lenses with up to 1/2 the lens inside the body for 50 years here is the Voigtlander Color Skopar 35mm f/2.5 II MF Lens For Leica...as you can see almost 1/2 the lens is below the mount

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My 5D IS a MK1 classic
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There is no argument for FF vs APS-c (or m43) with shallow DOF..as it's a law of physics and a very subjective personal thing if you want to make use of the shallow DOF only FF can offer
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