The Panasonic Lumix DMC-GH4 is a digital camera with 4K resolution video recording capability that is part of the Micro Four Thirds System as the world's first Mirrorless interchangeable-lens camera with 4K video recording capability.
The emphasis of the camera is the video with Venus Engine IX processor allow for 4K video and 12 fps continuous shooting. As 4K video camera, it can be categorized as pro-level video camera with record in Cinema 4K mode (4096 x 2160) or standard 4K Ultra HD (3840 x 2160) using IPB compression in 100Mbps. In Full 1080p HD there are 2 options, 200Mbps in ALL-Intra compression, or 100Mbps with no recording time limit. The camera also provide MOV, MP4, AVCHD Progressive and AVCHD video formats at a variety of frame rates according to the usage; and options for VFR (Variable Frame Rate) or Time Lapse/Stop Motion Animation without postproduction processing.
Autofocus needs 0.07 seconds only with 'Depth from Defocus' autofocus system. The camera also has Wi-Fi with NFC, PC sync port, highlight and shadow control, and a 'silent mode' which uses the electronic shutter only. Video shooting include focus peaking, zebra pattern, luminance level adjustment, and cinema gamma presets. An optional 'interface unit' adds five SDI and two XLR terminals, and permits 10-bit 4:2:2 output with time code.
- Official specifications