Sigma expands its sports and art lens ranges

£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

Finally, a camera that looks as good as the pictures it takes

£2,899/$2,797

177 lenses listed & rated

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