No single word better summarizes pro shooting, at least the stuff I mostly did- Industrial, scientific, event and aerial. Gotta get it right the first time every time because there are no second chances. Never got into sports photography because I already had all the pressure I needed. Only thing comparable in pure business terms was the aerial work. By contract terms, if I muffed a shoot, it meant the flights for reshoots were on my nickel. At close to $2,000/hr for a helicopter plus fuel or $1,400/hr for my usual choice in fixed wings, a 3- to 4-hour shoot was no small consideration. PREPARATION
is the most important word in that light!