The Nikon Df is 22.5 mm wider, 20.4 mm taller, 24.6 mm deeper and 365 g heavier than the Olympus OM-D E-M5.
| Olympus OM-D E-M5 | Nikon Df | |
|---|---|---|
| Size (W × H × D) | 121 × 89.6 × 41.9 mm | 143.5 × 110 × 66.5 mm |
| Weight | 400 g | 765 g |
| Lens | Micro Four Thirds | Nikon F |
| Sensor | Four Thirds | — |
| Announced | 2012 | 2013 |