Week7: Pactical on Controlling Dept of Field

There are 3 ways to control dept of field:
a. Aperture
b. Distance of camera and object
c. Focal length

Depth of Field	Aperture	Distance of Camera and Object	Focal length
Deeper	Small aperture ( Big f-stop number)	Far	Shorter (28mm)
Shallow	Big aperture ( Small  f-stop number)	Close	Greater (50mm)

Depth of field	Example	Aperture
Shallow		F/8 Focal length: 50mm Distance:  Same
Deep		F/20 Focal length: 50mm Distance:  Same