What is the difference between an amateur and professional.
A very important question for everyone, every day.
When I started to think about it, I wanted to find a simple, fast-acting formula.
The professional thinks: HOW IT WORKS,
An amateur thinks: WHAT TO DO.
Easy to distinguish.
later, in one forum I found:
1. Amateurs worry about equipment ;
2. Profesionals worry about money ;
3. Masters worry about light ;