The Nikon D7000 is a 16.2 megapixel digital single-lens reflex camera (DSLR) model announced by Nikon on September 15, 2010. It is a new class of camera placed between the professional D300S and the 'midrange' D90. The D7000 offers numerous professional-style features over the D90, such as magnesium alloy body construction, weather and moisture sealing, a 2,016-segment color exposure meter, built-in timed interval exposure features, 39 rather than 11 focus points, dual SD memory card slots, virtual horizon (in live view and viewfinder) and compatibility with older non-CPU autofocus and manual-focus AI and AI-S Nikon F-mount lenses (including an electronic rangefinder with three-segment viewfinder manual focus indication) as well as tilt-shift PC-E lenses. Other built-in features are a wireless flash commander, 2 user customizable modes, full HD video with autofocus and mono audio (With support for an external stereo microphone), automatic correction of lateral chromatic aberration and support for GPS and WLAN.