Nikon's new D4 flagship DSLR designed for enhanced low-light shooting
23.05.12
The D4 provides for full HD shooting of 1080p video at 30fps and 720p at 60fps. A crop mode for movies is available when the DX lens is attached. A new compression scheme for H.264 video gives you higher resolution and higher-quality movies without increasing file size. You can output from HDMI at 1080p, uncompressed, straight from Live View and you can now use cable releases to start and stop video. You can manually control video shooting, and even change the aperture while recording. Noise reduction is available in movie mode. Nikon didn't ignore audio: A headphone jack is built in.
The camera sports a fixed 3.2-inch LCD, 91,000-pixel RGB color matrix metering, a two-axis electronic level with pitch and yaw display, as well as a horizontal tilt. A silent shooting mode is available at 12 to 24 fps at reduced two-megapixel resolution.
It's rated at 2600 shots per battery charge.
The camera is encased in a 2.29-pound, weather-sealed magnesium-alloy body (only). The unit has two card slots—one CompactFlash and one XQD (a new format that is faster than CompactFlash), that allows backup and copying between slots. A new wireless transmitter—WT-5A supports 802.11N protocol.
Source: Macworld (blog)