The Panasonic Lumix DMC-G2 is 32 mm narrower, 33.4 mm shorter, 45 mm thinner and 1,052 g lighter than the Pentax 645D.
| Pentax 645D | Panasonic Lumix DMC-G2 | |
|---|---|---|
| Size (W × H × D) | 156 × 117 × 119 mm | 124 × 83.6 × 74 mm |
| Weight | 1,480 g | 428 g |
| Lens | — | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2010 | 2010 |