This is the way it's covered by the rotary.
The photographer has his own minilab and prints one of everything.
The boards are arranged accordion fashion and the photos are simply slipped behind two lines of elastic to hold them in place.
Very simple, effective display.
This year they economised on space by the helpers stacking all the photos of the same car behind each other, a great idea that made it easy to pick up all the pictures of my car
They are organised according to the session (run) number on the display boards.
So it's easy to go check after your track session that you got coverage.
At €6 per print to the rotary, that's a fair profit going to the children - even given that there is a 6" high stack of unclaimed prints at the end of the event.
It's simpler than other approaches I've seen.
At another event they had a caravan with a network of PCs with customers trying to pick their images by scrolling through every photo taken until they found their car.
I don't know how many sales they lost by having too few seats.
But with only 4 people able to pick photos at a time, and taking over 5 minutes a go, that didn't seem to be an efficient strategy.