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

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

Our comprehensive listing of key specifications for DSLR lenses

A not-so-standard, standard prime for full-frame Nikon and Sony mirrorless cameras www.viltrox.co.uk

This latest upgrade brings 32.5MP resolution, 40fps burst shooting and 7K open gate video to the hybrid arena

When you want to get closer to the action – Amy Davies shows you the phones that let you do it