Full frame camera for portraits? (Canon 6d vs 5d II vs Nikon 600d?)

[goodguy]

@Solarflare Every damn post about focus points--I swear you just make stuff up...

Here's the frame coverage of the D600 and 6D focus points:

Now overlayed.
View attachment 104721
If you honestly consider that "Better" coverage, you're out of your mind. The coverage is more or less identical -- slight edge to 6D on the two far points.


The 6D has 11 focus points. You can see where is has 9 vertically sensitive points and 3 horizontal--all sensitive to f/5.6 (the middle vertical is only good to f/2.8).

The D600 has 39 focus points. 9 are cross highlighted in red:

Seven points are sensitive to f/8 -- not 2.8 like the canon's middle vertical. eight.

all the remaining 32 focus points are good to f/5.6.

So to recap:

Canon cross points: 1
Nikon cross points: 9

Canon max sensitivty on cross point: f/5.6 horizontal and f/2.8 vertical
Nikon max sensitivity on cross points: f/8 and f/5.6

Canon max sensitivty on non-cross points: f/5.6
Nikon max sensitivity on non-cross points: f/8 and f/5.6

So with that being said, I'm going with the D600 working better in low light.



Side note: I would like to say that this weekend was the first time I had trouble focusing my D600 -- I was shooting portraits against the fireworks in pure darkness, the viewfinder was nearly pure black. I forgot to switch the camera back to AF-S from AF-C so I could get my focus assist to work. Suffice to say I was still able to nail focus:

IIRC that's either 3.2 or 5.6 in AF-C.

You pretty much said it all

BTW nice portrait shot under the circumstances you mentioned

 

[Solarflare]

Hmmmm interesting wasnt aware of that.