AdmiralTwizzler said:
I'm too much of an amateur to tell from the specs which is better for landscape photography.
I've read multiple posts on various sites that the D800 is better.
If you wanted to just do landscape photography, in a variety of environments, for the purpose of selling framed prints, selling cards, and entering contests, can you tell just by looking at the specs which one is better?
Thanks! I'll go back to my T1i now. But I'm going to buy one of the two.
The D800/E is your best bet. The D800 and 5D3 aren't too different overall for normal use, because the 5D3 has a very weak AA filter, so for general purpose it's not that big of a deal.
Here's a comparison with randomly arranged samples, with the 5D3 uprezed to the D800 resolution at 100% and one of the sharpest lenses in the world a Sigma 70mm f/2.8:
http://www3.picturepush.com/photo/a/7801636/img/Picture-Box/crops5d3vsd800.jpg
The D800 is still better but if you're not using the best techniques, lenses etc or pushing base iso raw files a lot, it will be a wash, plus the 5D3 has in camera HDR for jpgs.
The D800E is going to be extremely supperior to the 5D3 though for landscape work. It doesn't have an AA filter which means you might have to do a lot of work to reduce moire but it will be decidedly sharper and noticably so.
Nikon cameras also have much better dynamic range, while signal to noise ratio tests show that they are similar they are not because the Canon has what's called banding noise, which noise reduction cannot remove. Noise reduction is good for 2-5 stops of improvement so there is a noticable difference when you're trying to make the shadows more than 7 times brighter on a Canon camera. This video should explain that:
http://testcams.com/blog/2011/05/03/nikon-dx-vs-canon-aps-c-dynamic-range/
So in conclusion: Landscape Pro = D800E, Landscape Amateur = either one