I have a new hobby. It’s an expensive one. It takes time — long time if you want to perfect it. Digital photography is my new hobby. I’m already fairly deep into it. I bought my first camera, Canon Xsi, a few years ago. But I wasn’t doing much with it… taking pictures and viewing them in Picasa. Nothing else. Pictures were good, but I didn’t really understand what the features on the camera mean. But then, somehow, I came across a few books on digital photography. I think it was while browsing at a B&N. by Bryan Peterson was…