In this episode, Mark explains why f/2.8 is a large aperture opening and f/22 is a small aperture opening. Mark also discusses the meanings of the numbers on many lenses.
If you don’t know the difference between an f/stop and a bus stop, check out this guide, where Mark Wall ace explains how apertures and focal lengths work. There’s some fun math in here, as well!
And now, on with the show!
Learn more at the Adorama Learning Center: