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

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

Wideangle, super-telephoto, close-ups… this lens can do it all. Andy Westlake puts it through its paces

£566/$699

£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