I wanted to get a sense of what the three lenses I currently have form my Canon T3i are capable of. My T3i DSLR does not use a "full frame" sensor. That means I have some cropping or what they refer to as a multiplier. I think its about 1.5.This means my 50 mm. lens will behave on this camera body more like a 75mm lens on a full sized sensor camera.
I wanted to get a sense of focal length and cropping on the composition. I left the camera on the tripod in a fixed position. I focused on a piece of paper hung in the same position in each shot to see how each lens with different focal lengths focuses. I set up my camera on the very busy side wall of the class room at Quickdraw Animation Society.