Professional Definition of a Amatuer Photograpgher?
What's the problem? A pro is paid, and an amateur (notice AN before a vowel sound) isn't. Over the years, I've invested a pretty good amount in photo gear, but I don't make my living from it. So if I was recently down at San Diego Zoo taking pictures of the inhabitants, I was doing it for my own enjoyment, not planning to sell the stuff.
What is a volunteer?? Does he/she get paid? No, but the organization involved would probably like them to be there 40 hours a week, plus contribute to the cause financially.
I happen to belong to the Elks. Anyone who does knows that you could LIVE at the lodge and they would be happy to have you. As they say, charity begins at home. (Besides, that's the Leading Knight's concern!)