Nikon D300 Complete Manual page 43

V1.02
Remember, this is with a consumer lens, taken through an airplane window,
at a non-optimal aperture, shown with minimal post processing. I'd say the
D300 is quite capable of stellar results, and this example proves that even in
non-optimal situations the D300 can resolve plenty.
Thom Hogan's Complete Guide to the Nikon D300 Page 43