>Here's my primary unresolved concern that can explain some >of my complaints: Many people say the D800 needs a higher >handheld shutter speed than other cameras. You are going to >have to explain this one to me. Why does the D7000 with >the same pixel density NOT require an extra stop?
Being FX the mirror is bigger (and heavier) than the DX sized mirror in D7000. D800 is the first SLR I have owned where I can easily feel a reaction (camera kicks in my hands - ever so gently but still noticeable) when the mirror flips up prior to opening the shutter. so the camera is moving as the shutter opens. Heavy lenses increase the inertia of the combination and help to reduce this. Faster shutter speeds also help, as does tripod and mirror delay.