A technology incorporated into many cameras and other devices, which allows them to be discovered by satellites for the purpose of recording location information. This data is typically embedded into the image itself as part of its metadata.
On sale: 4th Jul
If you're in the market for a lens, don't miss our complete guide to buying a lens, with 8 pages of tips and advice to help you make the best decision. Also in this issue we put three of Nikon's best DSLRs up against each other to find out what you get for spending more money. Plus much more!
Which of the new cameras announced so far this year are you most excited about?
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