More on the claim that Sony E-mount was not designed for full-frame mirrorless cameras

Some additional information on the claim made by a Leica executive that Sony E-mount was initially developed for APS-C sensors and not specifically designed for full-frame mirrorless cameras (a story that was widely reported by many major websites, including PetaPixel, DIYphotography, Fstoppers sand others).

First, let's take a look at this old interview with Mr. Kazuto Yamaki, the CEO of Sigma who clearly states that it is very difficult to make full-frame mirrorless lenses for E-mount because it almost looks like the E-mount was designed for APS-C and not full frame (Google translation):

KY: true: many people tell us that we would have to make targets for those A7 cameras of 24x36mm, but we would like to study it. And this is because - in our opinion - also in this case, as in the case of Nikon, the mount seems to us to be a bit too small for the 24x36mm format [...]

DSLR Magazine: (we interrupt, with emphasis, with what is a bit of bad manners, that we regret) Why (hell) they would choose that mount!

KY: I do not know, I do not know ... reviewing your story, it's probably because it's the mount you originally chose for your APS-C cameras, afterwards, you saw the opportunity to put the 24x36mm in it, and they did.

Next, take a look at this interview with Sony engineers:

Here is a translation of the underlined part:

The E-mount is not suited for a 35mm full-frame sensor but limited to the size which is smaller than APS-C.

Pictures: Foto Hans Keuzekamp

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