Colonel Charles Barnett, from the Services Prosecuting Authority, said outside the court:
Sgt Nightingale has now had the trial which he requested, which is his right to seek. He has now been convicted by the board.
His fine record as a soldier is a matter that will no doubt be considered carefully when the board considers his sentence.
More top news
Festival-goers have been enjoying the second day of the Glastonbury festival.
Soros says that the European Union will struggle through the process of Brexit, with other countries wishing to follow suit.
Former Conservative cabinet minister Lord Mayhew has died aged 86, his family has said.