You probably look at portraits of world leaders and think they have taken ages to create - but as this video shows, they can be a somewhat rushed affair.
Earlier this year, Straits Times photographer Desmond Lim was tasked with the job of getting a portrait of Myanmar President Thein Sein. The problem… he'd have only 90 seconds to get the job done.
Preparing for the daunting task he set up a backdrop and three lights, an hour before a planned interview began.
Then straight after Sein had finished his interview, Lim conducted an impressively speedy photo shoot where he managed to capture two different portraits.