Just because you didn’t get to go to that awesome photography conference doesn’t mean that you can’t learn something from the pros! Occasionally, we’ll be featuring a recommended photography lecture or interview on Phototuts+.
Dylan Bennett is a photography enthusiast with a great YouTube channel. In this video, he explains those perplexing numbers that determine the aperture of your lenses. When is two more than four? When you're dealing with photography. Bennett takes you step-by-step through the math of this problem. Understanding this issue will just help you continue your mastery of photography.
Cameron Knight was the editor of the photography section at Tuts+. He's an award-winning photojournalist with over a decade of experience. Based in the Cincinnati, Ohio area he's available for freelance work in the Midwest.