Lens Basics: Everything You Need to Know About Focal Length from Magnification to Crop Factor (VIDEO)

Focal length is a simple but extremely important photographic concept, and in the quick video below you’ll learn all you need to know to make the most of the lenses you have as well as those you acquire in the future.

Vincent Ledvina is an independent filmmaker and he puts his animation skills to good use in the video below, explaining everything from magnification and crop factor to angle-of-view and much more, His five-minute tutorial also provides interesting insights into lens anatomy as well as how to choose the best lens for the situation at hand.

Ledvina also discusses the relative merits of prime lenses and zooms, and after watching the video you’ll be far more prepared the next time you go shopping for new glass. You can find more helpful videos on Ledvina’s YouTube channel, and be sure to look at an earlier animation we posted covering the basics of lens aperture settings.