Photographer John Jochimsen was in the right place at the right time half a century ago.

He happened to be near the Treetops Hotel in Kenya when the young Princess Elizabeth stayed there on a visit.

When she came down again, she was Queen. Her father, King George VI, had died at home in England during the night.

But, because of royal protocol, Mr Jochimsen didn't take a picture of the new monarch.

How times have changed. Today's photographers would never have missed such an opportunity, despite convention.

As the Queen marks her Golden Jubilee this year, she may look back wistfully at those days in the Fifties of greater deference and respect.

But it's only by adapting to changing times and accepting some of the alterations that the monarchy is able to survive and retain the respect of the people.