Lightstream wrote in post #8206176
Yes, blown away by the high ISO. Previously, with crop cameras, ISO 3200 left me virtually no room to maneuver in Lightroom. The image would fall apart quite quickly once you tried adjusting stuff. The only tool it responded really well to was the noise reduction.
ISO 3200 in the 5D was much more forgiving, you had some leeway for underexposure, but not much.
ISO 3200 on the 5D2 is stunning, it's as 'editable' as ISO 800 off the 40D. The LCD on the 5D2 is amazing, in fact it made me think my lenses were misfocusing on the other cameras when in fact their LCDs were just not sharp enough to display the detail, giving me the wrong impression. AF is faster than the 5D, noticeably so. Other than that, they kept all the best parts of the 5D. 6400 has already enabled me to get shots I would not have otherwise.
Battery capacity display is nice, as well as the larger top deck LCD, much better rear LCD, ISO in finder, enhanced viewfinder (brighter, more detailed info), and the creature comforts like HTP, ISO NR, nicer menus, more Cx options on the dial (5D only had 1). While 3fps to 4fps seems paltry to some, that's a 33% increase in framerate. It is noticeable, and meaningful. I can shoot sequences with the 5D2 and have them turn out really nice.
I'm deploying 2xFF bodies at events nowadays unless I need high speed crop, so the 5D is staying. 24-105 on 5D2, 135L or 70-200/4 ISL on 5D1. That's the main reason for my 5D2, I wanted 2 x FF.
My 24-105 would be superglued to one of the 5D's, but I want the ability to mix n match
that lens is more than just a lens to me, it's a signature. There will never be anything quite like it. This is the one lens they'll pry from my cold dead hands. Every story I need to tell.....is told via the 24-105.
You can knock the 5D2's files down to 12MP, no problem. In fact I do that because 22MP is kinda wasted on me. TBH, I bought the 5D2 for every other reason EXCEPT the megapixels. 12.7 (classic 5D) is fine for me.