Viltrox af 20mm f/2.8 z

Foxed by which fast prime lens to buy? Worried about wonky panoramas? Send your technique and camera questions to digitalcamera@futurenet.com

£566/$699

One of Nikon’s last DSLRs, the pro-spec D850 still has a lot to offer, as John Gilbey discovers

Canon’s latest compact has a super-wideangle 16-50mm equivalent zoom lens that’s ideal for video, but also has some photography uses. Richard Sibley checks it out

£2,899/$2,797

Is it time to trade in your 70-200mm f/2.8 for Sony’s latest 50-150mm f/2? Dan Mold finds out