The Panasonic Lumix DMC-GH3 is 9.6 mm narrower, 23.1 mm shorter, 7.5 mm deeper and 340 g lighter than the Olympus E-3.
| Olympus E-3 | Panasonic Lumix DMC-GH3 | |
|---|---|---|
| Size (W × H × D) | 142.5 × 116.5 × 74.5 mm | 132.9 × 93.4 × 82 mm |
| Weight | 890 g | 550 g |
| Lens | Four Thirds | Micro Four Thirds |
| Sensor | Four Thirds | Four Thirds |
| Announced | 2007 | 2012 |