In article , nospam
writes:

Some of the best wedding photos I've seen were just good candid shots
taken by a guest who just happened to know how to use a camera.

Reminds me of the fact that the iconic Ché Guevara portrait was a
spur-of-the-moment snapshot.

i've been to events where there were disposable film cameras on each
table and the guests took photos of whatever they wanted.

the cameras were collected and *those* photos were the ones that
captured the event with cherished memories, far more than any paid
professional and their boring canned poses.

One of the most iconic images in film is the "dance of death" at the end
of Bergman's THE SEVENTH SEAL. The interesting thing is that this
wasn't in the manuscript. The film had been finished and was literally
in the can and most of the actors had gone home. Bergman saw a
wonderful sky and wanted to include a scene against it in the film. So
some of the crew got into the actors' costumes and the scene was shot on
the spur of the moment, in one take, with no rehearsal, with people who
were not even actors. Of course, Bergman's genius was to seize the
moment. As Pasteur said, luck favours the well prepared. Bergman and
Kubrick were both known for the composition, for their use of light etc.
Kubrick sometimes shot scenes several hundred times. Bergman usually
once or twice. The end results are comparable, but Bergman remained on
speaking terms with his actors (and on other terms as well with his
actresses, having been romantically involved with almost all, married to
most, and fathered children for most).