I was wondering what i need to know before getting my t2i (it's in the mail right now) if i only got a gopro before..
I know that:
ISO speed: A measurement of how quickly your camera’s sensor absorbs light.
Shutter speed: A measurement of how long your camera’s shutter is open for when you take a shot.
Aperture: A measurement of how wide the shutter on your camera’s lens opens up when you take a shot.
But on what base did i adjust them ? Is there are chart or something like that that tell me how to do? and why did i need to do it ?