Depth of Field, Part 3:
Presented by Scott Ballard
Written by Tim Park and Scott Ballard
Summary: Something interesting happens to the depth of field when the subject distance changes. As the camera gets closer to the subject, the depth of field gets smaller and more compressed, but when the camera distance increases the depth of field expands.
At a special distance the far focal limit reaches infinity long before the focal plane gets anywhere close to this far. Sometimes this is just a few feet from the camera! This means you can have the distant horizon in focus plus a lot of foreground without needing to focus very far in front of the camera. This distance is called the hyperfocal distance.
Length: 6:23 minutes