Pho Toes
Out of context: Reply #37
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Before learning any functions (shutter speed, aperture, iso) learn about light. Go to your local bookstore and find a book on light principles as it relates to photography.
All the functions you change affect the amount of light in your exposure. Understanding light, and how each function controls how much light is let in to your camera, from the beginning will make things a lot clearer.
Also learn about the physical functions/parts of the camera each setting relates too. What's happening physically in the camera when you change your shutter speed/aperture? why would you choose to change one over the other?
iso/asa used to relate to the speed of film you chose, but that aspect is digital now. what's the advantage of a high iso? advantage of a low?
each setting changes only 1/3 of a stop with a turn of the dial. (this will be handy as you advance. keep this in mind.)