While the new Panasonic GH4 looks like its siblings in the company’s interchangeable lens Micro Four Thirds camera line – in fact an awful lot like the GH3 – it has one major difference: It is designed to shoot 4K video.
What’s 4K video? That’s the ultra-high-definition format, 4096 x 2160 at 24 fps for Cinema 4K and 3840 x 2160 at up to 30 fps for QFHD 4K.
Panasonic says the GH4 is the world’s first MFT camera to offer 4K video and, unless someone has been hiding another one, it is.
The newly developed 16.05-megapixel Digital Live MOS Sensor for the GH4 excels both in sensitivity and response and suppresses rolling shutter effect even when using the electronic shutter, says the company. Because of the sensor, dynamic range is expanded by up to 1/3 stop at low ISO sensitivity.
A new Venus Engine image processor dramatically boosts performance with a new quad-core CPU that allows high speed signal processing that is required for rich 4K video recording.
Integrating superior noise reduction systems, the GH4 enables shooting at maximum ISO 25,600.
Sensitivity, gradation performance, resolution and colour reproduction are dramatically improved to achieve even higher picture quality.
The GH4 boasts high speed burst shooting at 12 frames per second (AFS) up to approximately 40 (including RAW) / approx. 100 (excluding RAW) and 7.0 fps (AFC) to capture fast moving subjects. Yes, it does shoot stills!
The new GH4 is a professional video camera, says Panasonic. It captures 4K video in MOV/MP4. It also is capable of recording Full-HD video with ultra high bit rate at 200 Mbps (ALL-Intra) or 100 Mbps (IPB) without recording time limit.
Users can freely choose the format from MOV, MP4, AVCHD Progressive and AVCHD at a variety of frame rates according to the usage.
The GH4 is also capable of real-time image output to an external monitor via an optional micro HDMI cable simultaneously while recording video.
VFR (Variable Frame Rate) or Time Lapse/Stop Motion Animation can be produced with the GH4 without postproduction processing, says Panasonic.
The high-precision Contrast AF system in the GH4 is further enhanced by Panasonic’s integration of DFD (Depth from Defocus) technology which shortens the time to focus to achieve ultra high speed AF of approx.0.07 sec.
The GH4 boasts newly developed high-precision, high-speed dual OLED (Organic Light-Emitting Diode) displays of 2,359K-dot LVF (Live View Finder) and 1,036K-dot rear monitor. Both the LVF and rear monitor use OLED, the company explains, to achieve high speed response with minimum time lag while enhancing the resolution.
To be tough enough to withstand heavy field use, the main structure of the GH4 is composed of a magnesium alloy full die cast front/rear frame. It also features splash / dustproof construction by sealing every joint, dial, and button.
The shutter unit delivers a maximum 1/8000 shutter speed and is also redesigned to be even more durable for approx. 200,000 actuations.
The GH4 integrates Wi-Fi connectivity (IEEE 802.11 b/g/n) with NFC (Near Field Communication) technology.
Panasonic says you will need to use SDXC/SDHC memory cards compatible with UHS Speed Class 3 (U3) when using high bit rate video recording mode over 100 Mbps.
There’s been no word on either availability or price.