©Neil Turner/TSL. Carl Djerassi, June 1999, London.

Carl Djerassi, the chemist widely considered the father of the birth control pill, has died aged 91. I photographed him back in 1999 sitting in what I thought was a very ‘egg-shaped’ chair in his London apartment. If you want to know more about him, The Guardian’s obituary is worth reading but my very clear memory of being there was that he was one of the calmest people that I had ever met. He was confident without being arrogant and his understanding of my job and the job of the reporter who went with me was absolute. He had, obviously, been interviewed and photographed hundreds of times before but I still believe it to be true that most people who have had that kind of media exposure still don’t ‘get it’ in the same way that he did.

It seems that almost every week now I see an obituary in the press of someone that I photographed earlier in my career and it has two distinct effects on me. The first is quite predictable – I feel that bit older each time it happens. The second effect is to make me realise how amazingly lucky I have been in meeting the people that I have met and having been able to make what I hope are portrait and feature images that will stand the test of time.

This particular photograph lived in my folio for many years. It was unusual for me to have shot quite such a reflective portrait at that time. I was busy trying to make a reputation for myself as ‘the guy’ who used strong lighting and strong compositions to compliment that lighting. Like most phases of a career, it passed. I can still shoot the strong pictures when the situation calls for it but this portrait is far closer to my current favoured style than almost anything that I shot in those early days of digital. When I look back at the more memorable images that I shot through the late 1990s – the period of transition from scanned negative film to 1.9 megapixel digital cameras – a lot of them have this kind of feel and that surprises me because my memory is of lighting everything in slightly over-the-top ways.

Technical stuff: Kodak DCS520 camera with a Canon 28-70 f2.8L lens. Ambient light, 1/160th of a second at f4 on 400 ISO.