Hi Steve,
Sorry I should be more specific, 1:1 pixel resolution for video including at 640x480 at 1:1 and at 60fps.
I can't comment on the Nikon. But here is some interesting info on the canons written by Jerry.
http://www.astropix.com/HTML/I_ASTRO...Resolution.HTM
That kind of information is hard to come by so not sure if you could find out for the Nikon.
but this is only of value for planetary imaging.
cheers