The Nikon D610 Digital SLR Camera has the power of a 24.3 MP Nikon FX-format CMOS sensor in a compact, streamlined HD-SLR body. Create brilliant full frame images and 1080p videos. Capture every detail in stunning clarity with Nikon's superior 39 point AF system with Scene Recognition. Additional features include: 6 FPS burst shooting, 3.2-inch LCD, ISO expandable to 25,600, plus much more.Focus lock: Focus can be locked by pressing shutter-release button halfway (single-servo AF) or by pressing AE-L/AF-L button