Two miles above ground: Donn Delson’s aerial photographs – in pictures | Art and design

At 75 years young, Donn Delson specialises in large-scale, often abstract aerial images shot from ‘doors off’ helicopters at heights up to 4,000 metres (12,000ft). Strapped into a doorless helicopter over two miles above ground, Delson has spent more than 300 hours watching the world from a bird’s eye view, travelling from Japan to The Netherlands, England to Israel, and across the US