Does the 6D actually have 19 AF points?
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stargazer78
Registered: Jan 19, 2009
Total Posts: 371
Country: United States

I saw this interesting piece of detective work at dpreview by someone named hpjfromdk.

It appears as though the EOS 6D may have up to 8 invisible assist points surrounding the center AF point. The AF points aren't mentioned in any of Canon's marketing literature. However, a close inspection of the 6D AF sensor chip seems to reveal their presence:













So there is a possibility that the EOS 6D may have a 19-point AF system after all. 11 selectable, 8 non-selectable, and 3 high precision with f2.8 lenses.


Ralph Conway
Registered: Jul 31, 2008
Total Posts: 3833
Country: Germany

Interesting. But wich are the three?



stargazer78
Registered: Jan 19, 2009
Total Posts: 371
Country: United States

Ralph Conway wrote:
Interesting. But wich are the three?



Center AF point, and the two assist points directly above & below it. Just like the 5D2.



kewlcanon
Registered: Mar 28, 2009
Total Posts: 4416
Country: United States

Canon cripples it .



Ralph Conway
Registered: Jul 31, 2008
Total Posts: 3833
Country: Germany

kewlcanon wrote:
Canon cripples it .


Yes! Again and again ... !



skibum5
Registered: Jan 21, 2005
Total Posts: 16216
Country: United States

hmm i think i better get my 5D2 sold fast



abqnmusa
Registered: May 11, 2006
Total Posts: 2085
Country: United States

The 5D and 5D II had 6 assist points for AI Servo use ....

see the 5D II manual; page 80, 83,

page 198 -- custom function III-7 enables the 6 assist points

so actually 15 focus points total
-- 9 focus points plus 6 hidden assist points around the center point



skibum5
Registered: Jan 21, 2005
Total Posts: 16216
Country: United States

abqnmusa wrote:
The 5D and 5D II had 6 assist points for AI Servo use ....

see the 5D II manual; page 80, 83,

page 198 -- custom function III-7 enables the 6 assist points

so actually 15 focus points total
-- 9 focus points plus 6 hidden assist points around the center point



Yeah they do but the thought had been that the 6D had gotten rid of them, now it seems perhaps not.



n0b0
Registered: Sep 22, 2008
Total Posts: 5654
Country: Australia

Doesn't matter, you still have to focus and recompose.



stargazer78
Registered: Jan 19, 2009
Total Posts: 371
Country: United States

n0b0 wrote:
Doesn't matter, you still have to focus and recompose.



If you're talking about all the peripheral AF points being non-cross type... then you can make the same complaint about every single Nikon DSLR out there. Including the D4 and D800.



jorkata
Registered: Sep 02, 2009
Total Posts: 676
Country: United States

stargazer78 wrote:
So there is a possibility that the EOS 6D may have a 19-point AF system after all. 11 selectable, 8 non-selectable, and 3 high precision with f2.8 lenses.


Note that this is a possible AF point mapping. It's not been confirmed by Canon.

The AF sensor, though, shows that the center AF point has been beefed up quite a bit.
So, auto focus with only the center AF point should be an improvement over the 5Dc/5DII.
Maybe more so if those hidden AF points are active all the time.



joeisayo
Registered: Apr 15, 2004
Total Posts: 750
Country: United States

Honestly I would rather have the 11 point AF system of the 6D with -3 EV center point over the 19 focus point, -1 EV of the 7D.



thw2
Registered: Dec 27, 2004
Total Posts: 2836
Country: N/A

Good to know

stargazer78 wrote:
If you're talking about all the peripheral AF points being non-cross type... then you can make the same complaint about every single Nikon DSLR out there. Including the D4 and D800.


Precisely. The D600 is probably the most offensive because all the cross AF sensors are tightly clustered around the middle.



n0b0
Registered: Sep 22, 2008
Total Posts: 5654
Country: Australia

stargazer78 wrote:
n0b0 wrote:
Doesn't matter, you still have to focus and recompose.



If you're talking about all the peripheral AF points being non-cross type... then you can make the same complaint about every single Nikon DSLR out there. Including the D4 and D800.


Why would I? I don't use Nikon system.

I'd rather have the 60D or even better, the 7D AF in the 6D. I could focus fine inside dark caves with the 7D so I can't see any real world advantage of that -3EV focus capability.



RobertLynn
Registered: Jan 05, 2008
Total Posts: 11537
Country: United States

Lordy Lordy look who's 40.



ardvorak
Registered: Jan 05, 2005
Total Posts: 472
Country: United States

What is the center point sensitivity of the 5DIII? I think I remember reading that it was -2EV?

Will the 6D's added sensitivity really translate to performance you can feel in dim lighting? My understanding is that the 5DIII is already very snappy.



RobertLynn
Registered: Jan 05, 2008
Total Posts: 11537
Country: United States

ardvorak wrote:
What is the center point sensitivity of the 5DIII? I think I remember reading that it was -2EV?

Will the 6D's added sensitivity really translate to performance you can feel in dim lighting? My understanding is that the 5DIII is already very snappy.


It is -2.



CW100
Registered: Apr 03, 2009
Total Posts: 4402
Country: United States

stargazer78 wrote:
I saw this interesting piece of detective work at dpreview by someone named hpjfromdk.

It appears as though the EOS 6D may have up to 8 invisible assist points surrounding the center AF point. The AF points aren't mentioned in any of Canon's marketing literature. However, a close inspection of the 6D AF sensor chip seems to reveal their presence:


So there is a possibility that the EOS 6D may have a 19-point AF system after all. 11 selectable, 8 non-selectable, and 3 high precision with f2.8 lenses.



extra AF points are good, even if they are invisible



bushwacker
Registered: Jun 12, 2005
Total Posts: 861
Country: United States


here's my question...

It's a fact the 6D can go up to -3V... it's a given. The -3V is this for all AF points or just the center?



Dietrich
Registered: Mar 06, 2006
Total Posts: 6
Country: Germany

Just the center - all other points are specified to work from +0.5 to 18 EV.



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