The Lens (cont'd)

Pro Video
a. Subject is in focus
b. Exposed properly
c. Sound is crisp, clear, and present


Still dealing with focus
There is a person dedicated to pulling focus..the Focus Puller.

Large depth of field (small aperture) means everything is in focus. Deep Focus

Shallow depth of field (large aperture)

"It's in your control!"

Lenses are defined by focal length (measured in millimeters) and by speed (measured in f/stops).

Distortions:
Linear distortion
Perspective distortion

Lenses less than 50 mm (35, 28, 24, 21, 18, 14 mm are considered short lenses or WIDE ANGLE LENSES.

The wider the lens, the greater the linear distortion...and perspective distortion..and the greater the depth of field.

Wide Angle Lenses less than 10mm are considered Fish Eye lenses..because, apparently, that's what we think the world would look like to fish.

Lenses that are more than 75mm (85,135,300) are considered long lenses or TELEPHOTO LENSES