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| Spec | Lumix DMC-GH4 | Lumix DMC-GM1 |
|---|---|---|
| Year | 2014 | 2013 |
| Form Factor | SLR-style | |
| MP | 16.1 | 16 |
| Sensor | Live MOS | Live MOS |
| IBIS | ✗ | ✗ |
| IBIS Stops | — | — |
| Max ISO | 25600 | 25600 |
| EVF | ✓ | ✗ |
| EVF Dots | 2360k | — |
| LCD | 3.0 in | 3.0 in |
| LCD Dots | 1040k | 1040k |
| LCD Type | Free-angle | Fixed |
| Touch | ✓ | ✓ |
| Max Video | 4K | 1080p |
| Video FPS | 30p | 60p |
| Bit Depth | 8-bit | 8-bit |
| Bitrate Mbps | 200 | 28 |
| Codec | H.264 / AVCHD | AVCHD / MP4 |
| Rec Limit | 29 min | 29 min |
| Burst fps | 12 | 5 |
| AF Type | Contrast (DFD) | Contrast |
| AF Points | 49 | 23 |
| Cards | 2 | 1 |
| Card Type | SD | microSD |
| Mic Jack | ✓ | ✗ |
| Headphone | ✓ | ✗ |
| USB | Micro-USB | Micro-USB |
| HDMI | Full HDMI | Micro-HDMI |
| Wi-Fi | ✓ | ✓ |
| BT | ✗ | ✗ |
| GPS | ✗ | ✗ |
| Weather | ✓ | ✗ |
| LUT | ✗ | ✗ |
| Log | ✓ | ✗ |
| Flash | ✗ | ✗ |
| Hot Shoe | ✓ | ✗ |
| Battery | DMW-BLF19 | DMW-BLH7 |
| Batt Life | 530 | 210 |
| Weight g | 480 | 173 |