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Photographer Roger Steffens has taken iconic shots of rock and roll legends. But it’s his collection of personal snapshots of life in the 1970s – including some psychedelic double exposures – that is now attracting attention.

The work was mostly forgotten until his children digitised the slides and started posting them on Instagram. Now the @thefamilyacid feed has over 15,000 followers and the Steffens family has a new book, The Family Acid.

Roger and his children spoke to the BBC from Roger’s home in Los Angeles.

Filmed by Tim Myers. Produced by Bill McKenna and Regan Morris

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