Any bodies competitive with Sony c-af or eye-af?

Highgrovemanor wrote:

So what, if any M43 body will be close to a6400? Even Fuji's latest gen reviews pretty well.

Quick question:

Do you know that Sony's eye detection is mainly more for a show without real benefit in portraits, while on m4/3 system the eye tracking is done only once the depth of field becomes thinner to actually require the eye to be focused?

Sony engineers wanted to show up how amazing their face and eye tracking is, so they consume lots of processing to try recognize the face every situation (as should) and then once done so, recognize the eye and track it with a visual cue regardless of the DOF. While ie Olympus went on other way in 4/3 face and eye detection design. First to recognize the face and only when the recognized face size in the frame is large enough to make the eye focus mattering, do they start the eye detection process.

This makes the m4/3 system look inferior as you don't get the box for the eye all the time, as the system simply doesn't perform eye detection when the whole face is likely inside the depth of field.

As Olympus design is based to known fact that DOF is same regardless of the focal length when the subject magnification is same and when using the same F-ratio. Ie, 300mm f/4 has same DOF as the 12mm f/4 when the face is same size in the frame.

This allowed to simplify the processing for Live View decade ago as when the face is filling the DOF, then eye detection and focusing process can be deactivated. And only once the face becomes larger than the DOF, is the eye detection process started.

Here is example Panasonic implementation of the system:

So just keep in mind that while m4/3 cameras doesn't visually inform you about eye detection, it is not because they are inferior but it is by design just not done.

It doesn't mean that Sony didn't do anything less than great, but it is as well hyped through the roof even if it would be less than useful in such situations. What Sony method well show is their raw power and performance, but such things ain't usually benefit for the user, but when it works great for marketing purpose to show everyone that you are better, you will then just sell more as people talk about you more.

This example how not really until the A7r II the face and eye detection was started to be talked around the youtube reviewers as it was not so great in DSLR cameras, so ignorance people got amazed when a new popular brand had features that DSLR's didn't have, regardless that other mirrorless brands had it for long time. But to that point the others were just "gimmick".

So Sony really has managed to get a "standard" status where everything is suppose to be compared. And that is good for them, as they can sell a lot based only for that. Now Canon and Nikon get to feel how it is to be on the opposite side.