#61. "RE: How do I get sharper, in-focus pictures? Want to learn!" In response to In response to 60
The other factors are lens focal length (or reproduction ratio) and viewing size.
If images are viewed at the same physical size, a D800 with a 300mm lens and a D7000 with a 200mm lens will act pretty much the same in terms of blur due to camera shake. A D7100 (or D3200 or D5200) with a 200mm lens might require a bit more care than either.