« on: October 24, 2012, 10:35:02 AM »
It's blowing my mind how much better the 24-105 seems to be when mounted on the 5DIII as opposed to my 60D (or the T2i I had before)...it's like I unleashed its full potential.
I mean, it was still a decent lens on the 60D...but it just seems to come alive on the 5D. such a strange feeling...I've heard people on this forum and elsewhere rave about it and went ...but now I understand...
Anyway, having used the 17-55 pretty extensively on the 60D, I'd say the 5D with 24-105 is definitely a step up in quality, if you're in good light. In low light I'd consider the required raising of ISO to be more or less an equalizer in terms of quality. I find 60D 3200 = 5D 6400 for instance. 5D's 6400 probably still maintains a slight edge in my opinion, but you'd really have to view at 100% to tell a difference.
Most find the 24-105 a bit better on a crop. Assuming, that is, that its a crop with AFMA fine tuning the autofocus.
I love my 24-105mm L on both my crop and FF bodies, its one of the few FF lenses that are supurb on crop bodies as well as FF.
I agree that it's a great lens on both types of cameras.
I will say that the 60D perhaps can get better all-around performance out of the 24-105 because you don't get the distortion at 24mm nor the soft corners at f4...
on the 5D, to ME at least, it becomes a much more versatile lens because 1) it goes wide, making it usable indoors 2) I find IQ around the center to be much better, 3) its superior high ISO capability makes f4 less of a crutch in low-light situations.