The Panasonic Lumix DMC-GH2 is 5.5 mm narrower, 1.4 mm shorter, 22.8 mm deeper and 1 g lighter than the Olympus E-420.
| Olympus E-420 | Panasonic Lumix DMC-GH2 | |
|---|---|---|
| Size (W × H × D) | 129.5 × 91 × 53 mm | 124 × 89.6 × 75.8 mm |
| Weight | 445 g | 444 g |
| Lens | Four Thirds | Micro Four Thirds |
| Sensor | Four Thirds | Four Thirds |
| Announced | 2008 | 2010 |