FX vs DX

NIKON D3 10" f/10 18mm, ISO-200, AF-S NIKKOR 14-24mm f/2.8 G ED


NIKON D40X 30" f/10 10mm, ISO-200, SIGMA 10-20mm f/4-5.6 EX DC HSM


NIKON D3, AF-S NIKKOR 14-24mm f/2.8 G ED, cropped from 100%


NIKON D40X, SIGMA 10-20mm f/4-5.6 EX DC HSM, cropped from 100%