Originally posted by normhead For those of us with limited funds to spend, I'm wondering since you've used both D800 and 645D, do you have an opinion as to which to look at as a landscape body, to use in combination with a K-3 used for wildlife?
Tough one. If I was asked which was my favourite out of the two for landscape I would say 645D every day of the week. The tonality is better in my view and I like having the 4 x 3 perspective without having to crop. The one thing that would make me go for the D800 and was probably the reason why I often used it more often than the 645D over the last year is practicality.
If you want to shoot really really wide the options are either to stitch multiple frames or to spend thousands on the DA 25 with the 645D. For DR, the D800 beats the 645D but not my a huge amount, you can still push a lot of detail from shadows.
If you are thinking about getting the 645D, it might be worth holding off until the release of D810. Either buy the D810 or grab a bargain d800/e as people rush to get the latest thing.
It's a close one for me between the two, but the Nikon is more practical and if you lose your tripod and have a shot you don't want to miss and you can get it with ISO 3200, Only one of the two cameras is going to be able to do that.
The Z has opened up things for me as the changes add practicality. I'm not a sprayer, but when handholding faster continuous shooting can help get more keepers in the sequence in my experience.
Both the Nikon and the 645D are incredible cameras, and the files just look better on the 645D than the D800's. Which is most important? having a set of useful focal length lenses - EG 16 - 35; 24 - 70; 70 - 200. The easiest way to get these is with 24 x 36 FF. It's really whether the 'look' of the files outweighs the practicality for you.
Hope that helps - it may ask more questions than it answers. If I could get the same levels of lenses with the 645D then I would never have got the Nikon. The longer glass for 645 is both slower and heavier.