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Nikon D3100 digital SLR includes 1080p video with continuous autofocus  
Wednesday, August 18, 2010 | by Rob Galbraith
Nikon has officially unveiled the D3100, an entry-level digital SLR that's the first from Nikon to capture video at 1080p resolution, as well as the first from any digital SLR maker to offer continuous autofocus operation while video is being recorded. The camera is built around a 14.2MP DX-size CMOS sensor and has an 11-point AF system, 3fps burst rate, ISO range of 100-3200 (plus 6400 and 12,800) and new EXPEED 2 image processing.

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Video Focused: Views of the Nikon D3100. Click photos to enlarge (Photos courtesy Nikon)

Nikon D3100 feature highlights
  • Image sensor 14.2MP, DX Format, CMOS
  • Image processing EXPEED 2
  • ISO range 100-3200 plus 6400 and 12,800
  • Frame rate Up to 3fps (camera includes Quiet Shutter Release mode)
  • AF system 11 points
  • Metering sensor 420‐pixel RGB, 3D Color Matrix Metering II algorithm
  • Flash built-in, does not include wireless commander mode (wireless TTL possible with Speedlight SB‐900 or SU‐800 in the hot shoe); standard flash sync of 1/200
  • Memory card compatible with SD, SDHC and SDXC; Eye-Fi wireless SD card supported (power remains active while card is transmitting, enable/disable menu, rear LCD transfer icon)
  • Video 1080p at 24fps or 720p at 24fps/30fps, 10 minute continuous capture time, video files are .mov (MPEG-4 AVCHD). Full Time AF option during movie recording (and Live View) uses contrast detect autofocus. Audio recording is through a built-in mono mic only, there is no external mic jack. In-camera trimming of video files is possible
  • Video out HDMI connector, camera playback can be controlled with CEC-compatible TV remote
The Nikon D3100 will ship in mid-September 2010 in a bundle with the AF‐S 18‐55mm f/3.5‐5.6G VR at an expected street price of US$699.95 in the U.S.

Nikon USA has released a podcast featuring Senior Technical Manager Steve Heiner discussing the D3100 as well as the four new Nikkor lenses announced today. Play the podcast using the controls at right.

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