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”.
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We've seen how managing the ISO setting allows you to control the amount of grain that shows in your photos. But it does more than that. Understanding and working with the ISO setting gives us added flexibility in terms of setting the other two exposure settings–aperture and shutter speed.
The bottom line is that ISO is an important and useful tool, and one that you will want to be comfortable with if you are looking to take creative control of your exposure.