NEVERMIND I THINK I FINALLY FOUND IT.
http://www.tawbaware.com/maxlyons/calc.htm![]()
I'm sorry, i know ive seen something that will let me calculate this but I'm googling and googling and just can't figure it out. I'm looking for a utility that will let me calculate things like the following examples
At what distance can i fit a 6 ft tall person in the full frame sensor with a 200mm lens?
At what distance will they take up 1/2 the sensor? etc etc.
Thanks.

