Two very different sigma lenses

£566/$699

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

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

£2,899/$2,797

Our comprehensive listing of key specifications for mirrorless lenses

£1,969/$1,999 (body only)