Canon Executive explains why 6D has only one X point

andrikos wrote in post #15035677
"Canon finally honest and openly admit AF crippling"

Not to mention the dishonest/trolling thread title, but one wonders whether some people are begging to be banned from this forum.

Ching, did you actually hold the camera in your hand and test its AF performance?
Because I did and it's at least as good, if not better, than that of the D600.

In the centre point, anyway. But even the 5D2 has a very good centre point. It's the lack of decent peripheral points that limits the useability of the 5D2s AF.

Shadowblade wrote in post #15035716
In the centre point, anyway. But even the 5D2 has a very good centre point. It's the lack of decent peripheral points that limits the useability of the 5D2s AF.

The 6D's peripheral points have the SAME sensitivity as that of the center of the D600: -1EV.

So, if the D600 has decent center AF sensitivity, so does the 6D's periphery, no?

andrikos wrote in post #15035771
The 6D's peripheral points have the SAME sensitivity as that of the center of the D600: -1EV.

So, if the D600 has decent center AF sensitivity, so does the 6D's periphery, no?

Sensitivity isn't an indicator of performance - it merely indicates that the point is capable of focusing in a certain amount of light, not how quickly or accurately it focuses, nor how well it tracks, nor how well it deals with low-contrast subjects or subjects with contrast oriented the wrong direction for the sensor.

The 5D2's centre point is only sensitive to -0.5 EV and isn't the fastest, but is probably one of the most accurate AF points I have used, including when dealing with low-contrast subjects. Conversely, the 7D's points, while fast and responsive, aren't what I'd call particularly accurate.

Shadowblade wrote in post #15035814
Sensitivity isn't an indicator of performance - it merely indicates that the point is capable of focusing in a certain amount of light, not how quickly or accurately it focuses, nor how well it tracks, nor how well it deals with low-contrast subjects or subjects with contrast oriented the wrong direction for the sensor.

The 5D2's centre point is only sensitive to -0.5 EV and isn't the fastest, but is probably one of the most accurate AF points I have used, including when dealing with low-contrast subjects. Conversely, the 7D's points, while fast and responsive, aren't what I'd call particularly accurate.

+1 7D just miss focus when it feels like it, even in board daylight. It's not a bad AF module but I wouldn't count on it 100% when it blink red.

That EV-3 is going to be interesting.

The 6D is a very interesting camera. Especially low-light AF is something I like to hear. I'm not going to be shooting with a 6D any time soon, but if the prices will drop a little, the option might be there in the next year.
Nighttime photography is one of my favorite things - and although I only have 1 AF lens (and about 20 MF lenses) - for street photography, AF is quite critical...

Every preview i've read has been positive about the 6D's AF... They've used words like "fast" and "sure" and "quickly locks on in a batcave situation"

Even the peripheral points....

We cant judge an AF system by whats on paper...

-edit-

Also I read that entire interview, The guy makes a lot of sense, Canon has a very strong ethos to NOT jump RIGHT into some trend or anything but rather sit back, assess the situation and launch a very mature, well put together, well thought out product to compete, IE, the EOS M (Which i think is a VERY cool little mirrorless to be honest..i think it combines the nice things about all the mirrorless cameras into one)

KenjiS wrote in post #15043984
...and launch a very mature, well put together, well thought out product to compete, IE, the EOS M (Which i think is a VERY cool little mirrorless to be honest..i think it combines the nice things about all the mirrorless cameras into one)

After playing with one at Photokina I decided to definitely buy one. That and the 10-22 around town would be a smashing little UWA setup.

For all you supposed "AF experts" out there, please enlighten us on which camera that exists today has the type of focus module that is perfect????

If you say, "depends on the situation", than I believe the question is answered.

Even without knowing all the technical details about AF, the fact is the AF sensors are digital light sensors, similarly to the main camera sensor, so higher sensitivity for AF sensors means less noise in the measurements, which should result in better AF performance (accuracy, speed etc) overall, not just in terms of how dark it should get when AF can't even get a lock onto something.

I did a lot of focus MA tests with my 50D, and I can tell you AF doesn't fail abruptly at some brightness level - rather it is a very gradual process: AF is reliable in bright conditions (say 1/250s at ISO 100 and f/2.8), becomes less reliable around 1/50s (percentage of "keepers" drops), and fails to lock in at say around 1/5s.

So having -3 EV very likely means better AF (accuracy, speed) at intermediate brightness, not just the ability to focus under moonlight. We'll see.

Funny how you can totally change the meaning of quote by adding emphasis the speaker never intended.


He talked about the design goal of the camera. It's not for sports, it's for very low light. So that's why they placed more emphasis on low light vs tracking.

We know the D600 AF is based on the D7000. And the D7000 was widely reported to occasionally refuse to AF in low light situations. It rocks for tracking action in decent light, though. So yes, sometimes it is "just about that trade off".

Dmab wrote in post #15044719
For all you supposed "AF experts" out there, please enlighten us on which camera that exists today has the type of focus module that is perfect????

If you say, "depends on the situation", than I believe the question is answered.

Exactly..

Though i would throw my EOS-3 out there as probubly the best AF camera I've ever had.. it just..well..worked...

NBEast wrote in post #15024046
Bottom line; if they had done 3 simple things I would sell my 5Dii and 7D.

1. Same AF as 7D

2. new wish feature: Allow in-camera (and in viewfinder) crop so that FF becomes a crop (so, turning it into a 7D). OK, maybe this one's not so simple.

3. Flash. They are sticking to the old mentality before in-camera flash doubles as a Master. Also; ignoring that fill-flash and eyelight are fully valid uses for simi-pro-photog use of pop-ups; particularly when wanting to remain incognito. Not to mention casual family outing that just need a bit of light but bringing a 580 II is just too geeky and unnecessary. My main reason for almost never taking the 5Dii to family outings.

As it stands; I see no reason to do anything. Also; there's still no clear winner for a new serious amateur wanting to upgrade (cheaper 5Dii, 6D, or 7D).

This!! 100% with you
I was hammered on another thread because I thought it was a good idea to have a Crop Mode on the 600D, and allowing to "See the shot in crop mode" is great, If Nikon can do it Canon can do it, off course they shot their own foot creating the EFS incompatible with the cameras. But I still think is a great feature

Flash!! every body says that they will not use the pop up flash, but I think is must!
Command mode is great to use it OCF, and in a normal family condition the pop up flash is a saver!

AF.. Nikon just borrowed the D7000 AF and made it fit the D600, why not get the 7D AF and paste it in the 6D?

[QUOTE=KenjiS;15043984​]Every preview i've read has been positive about the 6D's AF... They've used words like "fast" and "sure" and "quickly locks on in a batcave situation"

Even the peripheral points....

We cant judge an AF system by whats on paper...


I completely agree

borism wrote in post #15055536
I was hammered on another thread because I thought it was a good idea to have a Crop Mode on the 600D, and allowing to "See the shot in crop mode" is great, If Nikon can do it Canon can do it

and those hammering people said you could crop the pic no matter what mode, even without a "crop" mode.
but really, why crop the 600D when it's already cropped