Nikon says its new Expeed2 image processor allows for real-time contrast-based autofocus while shooting video, and tracking up to 35 faces.
Nikon claims the D3100 “is the first D-SLR to implement full time AF for D-Movie video shooting and while in Live View mode.” The camera captures 1080p video at 24fps in h.264 — a good step up from Nikon’s previous SLRs that had only 720p Motion JPEG video.
The 14-megapixel SLR shoots 3 still frames a second. It is priced at a reasonable $700 with an 18-55mm lens.
The D3100 also features an enhanced Guide Mode “that makes it easy to unleash creative potential,” Nikon says. It’s “like having a personal photo tutor at your fingertips… The graphical interface on the camera’s LCD guides users by suggesting and/or adjusting camera settings to achieve the desired end result images.”
The camera has a 3-inch LCD, measures about 5 by 3.8 x 3 inches, and weighs 17.8 ounces.





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