I'm almost confident that the organisers didn't use anything toxic My camera and lens did end up with a nice layer of coloured dust on it.. (unlike the pros who all thought to bring protective covers - guess that's what separates the wheat from the chaff ) )
Nice pictures. I plan on running one that is local here in October. There is a version of the run at the end of the month and thought about taking pictures but not sure about getting the powder paint on my camera.
When your mouth drops open, click the shutter. -- Harold Feinstein
From my experience the dust is not that bad. Yes, you can get in the midst of it and really get covered, but On this day I stayed pretty much up wind and my camera got a thin layer of dust, but nothing that a quick brush didn't fix.. as long as the dust remained dry, it was tack free. I did not dare to change lenses though the whole time.. that might have been trouble Otherwise all the official photographers had little plastic covers over the camera body.. a fair few iphones were ruined that day I dare say