The D5200 is based around a 24 MP DX format CMOS sensor, which Nikon says is new. It has a 1.5x 'crop factor', which means that an 18mm lens offers a similar angle of view to a 27mm lens on the 35mm 'full frame' format.
The camera uses the Nikon F mount, but you'll need to buy Nikon's AF-S lenses to get autofocus, or third-party options with built-in focus motors.
The main control difference compared to the D5100 is the addition of a dedicated drive mode button on the top plate.
There's a bright LED autofocus illuminator, that the camera will automatically activate when the light is too low to focus. It can be disabled in the menus, if you prefer.
Switching the camera to its 'Quiet' shutter mode will also temporarily disable the AF illuminator, along with the focus confirmation beep.
The D5200 sports front- and rear- infrared receivers for the ML-L3 wireless remote control, on the handgrip and left shoulder respectively. This means it's just as easy to trigger the shutter when shooting from in front of, or behind the camera.
The pop-up flash is the same as on previous cameras in the range. With a guide number of 12m at ISO 100 it's got a reasonable amount of power for social shooting or a bit of fill-flash. The housing lifts high above the mount to minimize shadowing with larger lenses.
Unfortunately the built-in flash doesn't offer wireless control of external flash units as it does on higher-end Nikons.
As usual there's a hotshoe on top of the pentamirror that's compatible with Nikon's external Speedlight units.
The memory card slot is on the grip side of the camera, and takes SD, SDHC and SDXC cards. The D5200 supports high-speed UHS-I cards.
The D5200's connectors are behind a rubber flap on the left of the camera. The stereo mic jack is top left, above the multi-connector port that accepts the WU-1a Wi-Fi and GP-1 GPS units, or MC-DC2 cable release. The latter can be set to initiate either stills or video capture.
To the right are USB/AV out ports and an HDMI socket (CEC compatible).
Two small grills in front of the hot shoe conceal the stereo microphones, appearing for the first time on a Nikon SLR.
The D5200 uses the same EN-EL14 battery as the D5100. It's a 7.4V, 1030mAH, 7.7Wh unit that's also used in the D3200. According to Nikon it provides a CIPA rating of 500 shots.
This represents a 25% drop in the number of shots you can expect to get from each charge, compared to the D5100.
The tripod socket is positioned in-line with the lens axis, with a decent area surrounding it for a quick release plate to grip. It's also well-separated from the base compartment door, meaning that you can change batteries with the camera mounted on a tripod.