So, those of you who have used both systems do you guys feel that Nikon cameras are designed and built keeping a smaller hand size as the target compared to comparable Canon cameras? I used the Nikon cameras of two of my friends (one D80 and the other was probably D90 or D7000) and found the hand grip feeling smaller/thinner than my 40D and 50D....... any opinion?
I've never picked up a Canon body that didn't feel OK to hold & use.
OTOH, I positively HATE the feel of Nikon's D7000 series and the D600 - I find them so unpleasant I skipped buying the economical D600 and grabbed another D800 instead. Those slightly smaller/thinner grips give my hand a cramp in very short time where I can carry a d800 or smaller D5100 around for hours w-o a strap quite easily, even with large glass attached.
D800 is a larger body, my hands are small to mid-sized and the D800 is a very comfortable camera for me to use.
Also, the D5000 series cameras are very comfortable for me despite the small Rebel-ish size. The proportioning and overall balance are more pleasant than the d7000/600 IMO. All highly subjective, of course.
D90 is not bad for me but don't like it as much as d800's fit.
I'm still waiting to see if there's a high end cropper coming (D400 ?) to replace the aged D300/s but concerned it might feel too much like the 7000 series. That will also be competing against a possible 7D Mk II for my uses.
The 7D was a really nice camera to use in all respects except, for me, it's IQ was inadequate for some of the shots I wanted it for. I'm hoping 7D2 will continue the excellence and provide improved noise levels; even the 70D would be adequate but I won't be needing it until next summer so can wait.
More on ergos, I often shoot with a Pentax K52s, great little camera, feels lovely in my hand.
K-30 has that annoyingly deeper, thinner grip, not too unlike D7x00. But not quite so bad that I didn't buy the K30... for $450 for a NIB camera with its capabilities I could put up with a bit of discomfort for the little time I'll be carrying it.