Just Posted: our review of the Nikon Coolpix P310 mid-level compact camera. The P310 builds on the groundwork done by its predecessor, the Coolpix P300 - offering the manual control of its more expensive enthusiast peers, such as Canon's S100 but using a smaller sensor to keep the cost down. The P310 features a 24-100mm equivalent, F1.8-4.9 lens in front of a 16MP back-lit CMOS sensor capable of 1080p30 video.