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| Spec | OM-D E-M1 | PEN E-P1 |
|---|---|---|
| Year | 2013 | 2009 |
| Form Factor | SLR-style | Rangefinder |
| MP | 16.3 | 12.3 |
| Sensor | Live MOS | Live MOS |
| IBIS | ✓ | ✓ |
| IBIS Stops | 4.5 | 3 |
| Max ISO | 25600 | 6400 |
| EVF | ✓ | ✗ |
| EVF Dots | 2360k | — |
| LCD | 3.0 in | 3.0 in |
| LCD Dots | 1037k | 230k |
| LCD Type | Tilting | Fixed |
| Touch | ✓ | ✗ |
| Max Video | 1080p | 720p |
| Video FPS | 30p | N/A |
| Bit Depth | 8-bit | 8-bit |
| Bitrate Mbps | 24 | — |
| Codec | H.264 | AVI MJPEG |
| Rec Limit | 29 min | 7 min |
| Burst fps | 10 | 3 |
| AF Type | Hybrid PDAF | Contrast |
| AF Points | 81 | 11 |
| Cards | 1 | 1 |
| Card Type | SD | SD |
| Mic Jack | ✓ | ✗ |
| Headphone | ✓ | ✗ |
| USB | Micro-USB | Mini-USB |
| HDMI | Micro-HDMI | Mini-HDMI |
| Wi-Fi | ✓ | ✗ |
| BT | ✗ | ✗ |
| GPS | ✗ | ✗ |
| Weather | ✓ | ✗ |
| LUT | ✗ | ✗ |
| Log | ✗ | ✗ |
| Flash | ✗ | ✗ |
| Hot Shoe | ✓ | ✓ |
| Battery | BLN-1 | BLS-1 |
| Batt Life | 350 | 300 |
| Weight g | 443 | 335 |