Our comprehensive listing of key specifications for DSLR lenses

Feeling frustrated by flashguns? Misfiring autofocus making you anxious? Send your technique and camera questions to digitalcamera@futurenet.com

Here are our best-buy bargain second-hand lenses to buy, as selected by the AP team and contributors

Master the art of modern photography

Angela Nicholson weighs up whether your money goes further with a cheaper body and great lens or a high-spec camera and modest zoom, using Nikon and Sony kits

£1,400/$1,498