A technique whereby the exposure metered from one scene is locked and used for an alternative composition. This can be used to compensate for awkward lighting situations such as backlighting, and on a DSLR is usually accessed by a physical control.
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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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