|Taken by Pete Souza.|
Barack Obama has already done many things which the USA have never seen before and now he has another first to add to his belt. He's the first President to have his official portrait taken on a digital camera.
The Office of the President-Elect said the photograph was taken by the White House's new official photographer, Pete Souza.
According to the metadata it was taken on a Canon EOS 5D Mk II with an ISO setting of 100 and an F/10 aperture. The lens had a focal length of 105mm.