Hugo Burnand is Charles and Camilla's favourite society photographer which has worked with the royal family for years, while Mario Testino is Lady Diana's close friend.
Testino has often photographed members of the royal family, taking portraits to mark Prince William's 21st birthday in 2003 and his younger brother Prince Harry's 20th birthday the next year. He also has photographed their father, Prince Charles, for Vogue magazine.
Testino, who is known worldwide as a fashion photographer and is popular for his pictures of celebrities and royalty, shot the first official photo of Williams' engagement.
Prince William and Kate Middleton look relaxed, poised and very much in love in official photos released to mark their engagement.
"William is a very photogenic person... self-confident, relaxed, impressive – and so much like his mother. I think it comes from a sense of security," Testino was recently quoted as saying.
One of the two images by Mario Testino shows the couple, dressed in jeans and casual tops, smiling in each others' arms. The other, more formal, depicts them standing together in a state room at St. James's Palace.
See in the next post pictures of Prince William and Kate Middleton engagement ;)