President Elect Obama is the first president of the USA to have his official portrait taken with a digital camera. The photo was taken with a Canon EOS 5D Mark II on January 13th, 2009 at 5:38 pm with no flash, using a 105mm lens stopped to f/10 at a 1/125 exposure, with an ISO of 100 by the new official White House photographer Pete Souza.
Obama's first official presidential portrait
And get this....our new president is allowing us to download a copy of it!
Obama's Official Presidential Portrait