A small lamp which aids autofocus by way of additional illumination. These are often activated automatically by the camera when necessary, although in some models they can be disabled for more discreet operation.
On sale: 14th Feb
We introduce the new and improved look of What Digital Camera with 102 camera reviews, while in a high-resolution battle, the Sony A7R and Nikon D800E go head to head, plus we've put together an essential guide to Wi-fi.
Which of the new cameras announced so far this year are you most excited about?
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