Suspected 21 July bombers, including Adel Yahya, were among those photographed by police while camping in May 2004.
Defendants Ramzi Mohammed (left) and Yassin Omar (right, wearing a hooded top) were two of the men photographed in Cumbria.
Defendant Hussein Osman was also among those photographed more than a year before the alleged attacks.
Muktar Said Ibrahim took part in the camping trip, which is thought to have taken place on a bank holiday.
Ramzi Mohammed was among more than 20 men involved in the camping trip.
Yassin Omar, 26, from New Southgate, north London, is among those accused of involvement in the alleged bomb plot.