It was taken in the library at Clarence House in February 2008. The Prince was dressed in the ceremonial red uniform of the Welsh Guards, of which he is Colonel.
Mr Burnand said at the time he was 'thrilled' that Prince Charles chose the image to mark his birthday.
"I like to have an approachable feel with photographs so you are almost talking to the person," he said.
Prince Charles chose a formal uniform but a relaxed pose for the official portrait to mark his 60th birthday.
The Prince of Wales is shown wearing the ceremonial uniform of the Welsh Guards, minus the headdress, in the photograph taken by Hugo Burnand.
The prince, who has been Colonel of the Welsh Guards since 1975, wears the uniform every year for the Trooping of the Colour ceremony.
On Thursday, the Queen hosted a lavish birthday dinner at Buckingham Palace.
Prince Charles and the Duchess of Cornwall were joined by Princes William and Harry and the Duke of Edinburgh at the dinner.
Among more than 400 guests were European royalty, friends and members of the prince's charities.
In a short address Princes William and Harry thanked everyone for attending and paid tribute to their father as "an inspiration to us and so many others".
You've seen Hugo Burnand's official picture for Prince Charles' 60th birthday in this post.