a built-in web browser-based remote camera control interface that doesn't require you to download or install a specialized app. Essentially, you can log into your camera (with a username and password) using your laptop, tablet or smartphone and its standard web browser, at which point you're presented with a camera control panel with live view feed. You can adjust a wide range of parameters - exposure mode, shutter speed, aperture, exposure compensation, ISO, white balance and so on, and initiate remote shutter release or video recording.
The WT-5 connects to the socket on the lower left of this image. In the center you can see the microphone and headphone sockets. On the lower right is the Ethernet port.
The web interface also allows you to control multiple cameras simultaneously, including the ability to release their shutters simultaneously. You can even autofocus anywhere in the scene, simply by touching your iPhone or iPad's screen. Because this is all web-based, you don't have to physically close to the camera either - in principle you could operate it from a different continent.
Nikon has clearly paid attention to professional photographers' workflow requirements when shooting, and has tried to set the camera up so there's no need to use a laptop alongside it any more. To this end the D4 allows photographers to add full IPTC data to all of their image files as they shoot, and can store 10 data presets each containing 14 fields. There's a new network setup wizard to configure the camera for use over wired LAN, or WiFi in FTP and HTTP mode. The camera can even use the GP-1 GPS receiver to automatically set its internal clock, so multiple cameras can easily be synced and specific events from a shoot identified by the time at which they occurred.
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