The Pentax 645D is 32 mm wider, 27.4 mm taller, 43.2 mm deeper and 1,036 g heavier than the Panasonic Lumix DMC-GH2.
| Panasonic Lumix DMC-GH2 | Pentax 645D | |
|---|---|---|
| Size (W × H × D) | 124 × 89.6 × 75.8 mm | 156 × 117 × 119 mm |
| Weight | 444 g | 1,480 g |
| Lens | Micro Four Thirds | — |
| Sensor | Four Thirds | — |
| Announced | 2010 | 2010 |