Digital images in competitions

In u/w photography competitions usually you suppose to shot the first frame of every roll of something that confirms that all roll was used all in the day and place of the competition.

How the organizers verify the same thing with digital cameras? How they can know that someone didn't download frames, edit and fixed on the computer and then upload them again?

I'm talking of course about competitions that don't aloud post processing.

Most "on the day" competitions are usually for fun and prestige and rarely have big prizes. If people want to cheat under such circumstances then I don't know what to do.

I have run the digital on the day competition at the last two BSoUP Splash In on the day competition. What we do is to make every competitor demonstrate that their card is empty and then take the first picture of our BSoUP card.

If we suspect that foul play, we reserve the right to check cards etc. So far we never have.

We didn't allow post processing in the first year. But now allow "optimisation" that is slight cropping + full image adjustments. So no cloning, masking, layers etc.

Alex

At my suggestion a couple of years ago, NCUPS makes all the digital shooter set the date on the camera to one given at registration. It's simple to implement, but if somebody really wants to cheat, it's not hard to find the software on the web that will let you rewrite the EXIF files.