Mark Wallace is the host of a video series on photography sponsored by AdoramaTV. Adorama is a camera megastore located in New York City.
I love all of Mark’s videos. They are always well done and very informative. Mark really knows his way around a camera and he’s knows how to communicate his knowledge to his viewers in a down-to-earth way. (BTW, I don’t know Mark personally. I’m just a big fan of his work.)
Below is a recent video he did on learning to see your images before actually shooting them, an exercise Mark refers to as “visual pushups”.