Nikon D3100

The Nikon D3100 is a 14.2 megapixel DX format DSLR Nikon F-mount camera announced by Nikon on August 19, 2010. It replaces the D3000 as Nikon's entry level DSLR. It introduces Nikon's new EXPEED 2 image processor and is the first Nikon DSLR featuring full high definition video recording with full time autofocus and H.264 compression, instead of Motion JPEG compression. Use is assisted by two Guide Modes: Easy Operation and Advanced Operation tutorial.

Like Nikon's other consumer level DSLRs, the D3100 has no in-body autofocus motor, and fully automatic autofocus requires a lens with an integrated autofocus-motor. With any other lenses the camera's electronic rangefinder can be used to manually adjust focus.

Features

Nikon's 14.2-megapixel Nikon DX format CMOS sensor.
Nikon's EXPEED 2 image processor.
Active D-Lighting.
Automatic chromatic aberration correction.
Sensor cleaning and airflow control system.
3.0-inch 230,000-dot resolution fixed TFT LCD
Continuous Drive up to 3 frames per second.
Live view mode. Live view AF modes: Face priority, Wide area, Normal area, Subject tracking
Full High Definition video recording (1080p for 10 minutes at 24 frames per second in H.264 codec), additionally 720p30/25/24 and 480p24
Full time autofocus in movie mode.
3D Color Matrix Metering II with Scene Recognition System.
3D Tracking Multi-CAM 1000 autofocus sensor module with 11 AF points.
ISO sensitivity 100 to 3200 (6400 and 12800 with boost).
Nikon F-mount lenses.
i-TTL flash exposure system without built-in wireless control.
Extended In-camera retouching: D-Lighting, Red-eye reduction, Trimming, Monochrome & filter effects, Color balance, Small picture, Image overlay, NEF (RAW) processing, Quick retouch, Straighten, Distortion control, Fisheye, Color outline, Perspective control, Miniature effect, Edit movie
File formats: JPEG, NEF (Nikon's RAW, 12-bit compressed)
Compatibility with SDXC memory cards

http://en.wikipedia.org/wiki/Nikon_D3100