The Nikon D5000 is 18.5 mm narrower, 3.8 mm shorter, 6.5 mm deeper and 211 g lighter than the Canon EOS 40D.
| Canon EOS 40D | Nikon D5000 | |
|---|---|---|
| Size (W × H × D) | 145.5 × 107.8 × 73.5 mm | 127 × 104 × 80 mm |
| Weight | 822 g | 611 g |
| Lens | Canon EF | Nikon F |
| Sensor | APS-C | — |
| Announced | 2007 | 2009 |