Photography with Imre Z. Balint: Episode 1 – Aperture
Yeay! I finally finished my first webisode of a series I’ve always wanted to do about various topics in photography. The first subject I discuss is aperture, a very important aspect of taking great pictures. In my video I show what an iris diaphragm looks like, which is the mechanical part in a lens that controls the aperture that either restricts or permits additional light to penetrate the lens (thus light that hits the film or sensor). In a (tiny) nutshell, here’s a summary of aperture: The aperture of a lens controls the amount of light that can pass through it to the film or sensor Larger aperture = more light passing through, smaller aperture = less light passing through This sounds odd, but: larger aperture = smaller f-number, smaller aperture = larger f-numbers (inverse relationship) Depth-of-field (DOF) is how much of an image is in focus Large apertures (smaller f-numbers) means smaller DOF; small apertures (larger f-numbers) means larger DOF Different lenses behave ...