Ef vs rf lenses - do you really need to upgrade?

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

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

£566/$699

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

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

Our comprehensive listing of key specifications for mirrorless lenses