1d Mark II focusing vs 5D

[JDArt]

I find that in dimly lit situations, the 5D focuses more rapidly than the 1D mark II. My mark II hesitates ever so slightly, perhaps a second, before moving to focus as light levels are low. The 5D, by contrast, begins focusing almost instantaneously.

[dc2]

How do you find it [5d focusing ] compared to 1Ds2 ?

[JohnC]

Might be related to the stuff Chuck Westfall talks about in his latest tips column at http://www.digitaljournalist.org/iss.../westfall.html

John

[Alice Morrison]

http://dirckhalstead.org/issue0512/westfall.html

Quote from Chuck Westfall:

"The pixels on the 45-point AF sensor are much smaller than those on the 9-point AF sensor, and one inevitable result of this difference is superior low-light sensitivity for the 9-point sensor. This is reflected in the specifications for each camera, which state the 20D's AF sensitivity at EV -0.5 compared to EV 0 for the 1D Mark II N."

[dc2]

Originally Posted by Alice Morrison

http://dirckhalstead.org/issue0512/westfall.html

Quote from Chuck Westfall:

"The pixels on the 45-point AF sensor are much smaller than those on the 9-point AF sensor, and one inevitable result of this difference is superior low-light sensitivity for the 9-point sensor. This is reflected in the specifications for each camera, which state the 20D's AF sensitivity at EV -0.5 compared to EV 0 for the 1D Mark II N."

Yes, that makes sense

[metalstorm]

Originally Posted by JDArt

I find that in dimly lit situations, the 5D focuses more rapidly than the 1D mark II. My mark II hesitates ever so slightly, perhaps a second, before moving to focus as light levels are low. The 5D, by contrast, begins focusing almost instantaneously.

Which one is more accurate?