Description

This article is from the Photographic Lenses FAQ, by David Jacobson with numerous contributions by others.

09. What is hyperfocal distance?

The closest distance that is in acceptable focus when the lens is focused at infinity. (See below for a variant use of this term.)

        h = f^2/(N*c)

Continue to:

• prev: 08. What is meant by circle of confusion?
• Index
• next: 10. What are the closest and farthest points that will be inacceptably sharp focus?