The Olympus OM-D E-M5 Mark II is 19.8 mm narrower, 30.5 mm shorter, 38 mm thinner and 344 g lighter than the Nikon D780.
| Nikon D780 | Olympus OM-D E-M5 Mark II | |
|---|---|---|
| Size (W × H × D) | 143.5 × 115.5 × 76 mm | 123.7 × 85 × 38 mm |
| Weight | 840 g | 496 g |
| Lens | Nikon F | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2020 | 2015 |