Our comprehensive listing of key specifications for DSLR lenses

All your questions answered. Send your questions to digitalcamera@futurenet.com

Tim Irwin’s 3D printed 90mm lens is a whole lot better than it looks, says Damien Demolder , and it produces some useful, and fun, results

This chunky lens is a terrific telephoto prime with an exhilarating turn of speed www.sigmauk.com

Sony’s enthusiast-focused all-rounder brings major updates and performance boosts, but is that enough to bring it back to the top of its highly competitive class? Andy Westlake finds out

This month: Improve composition Compose yourself for photographs that are worth looking at more than once