When I talk to people about photography, most are confused by what exposure means. No, I’m not talking about getting your face in front of others like celebrities do, but rather making sure that your camera has correct amount of light passing through the lens to strike the film or digital sensor. Essentially, there are three pieces of settings on your camera that need adjusting to make sure that your exposure is correct: aperture, shutter speed, and camera ISO.
Now its not my intention to explain all three in this post-I will save that for future posts. But I wanted to turn you on to a book that I found a few years back that does a marvelous job of explaining it (I don’t normally plug others work but I found this book well worth it). It is called “Understanding Exposure: How to Shoot Great Photographs with any Camera” by master photographer Bryan Peterson. Bryan does a wonderful job of explaining the three pieces of the exposure puzzle (including concepts such as depth of field and infinite sharpness) and challenges the reader to demonstrate mastery over the concepts with their own personal photo projects.
You can find Bryan’s book at most bookstores and online at Amazon (http://www.amazon.com/Understanding-Exposure-3rd-Photographs-Camera/dp/0817439390/ref=sr_1_1?ie=UTF8&qid=1307061446&sr=8-1).
P.S. I do not get anything from my endorsements of any product or service. I simply offer my thoughts and opinions based on my own personal experience.