Aperture & Depth of Field

What is the purpose of the aperture in a photographic lens?

• To control the size of the aperture

• To control the depth of field

• To adjust the focus setting

• To change the lens diameter

How is aperture related to F-numbers?

• Smaller F-number means larger aperture

• Larger F-number means larger aperture

• Smaller F-number means smaller aperture

• Larger F-number means smaller aperture

What effect does the widest aperture (smallest f-number) have on the depth of field?

• Increases the depth of field

• Decreases the depth of field

• Has no effect on the depth of field

• Changes the focus setting

What is the depth of field?

• The distance between the front and back elements of a lens

• The distance between the nearest and furthest parts of a subject that can be imaged with acceptable sharp detail

• The size of the aperture in a lens

• The focus setting of the lens

What effect does the smallest aperture (highest f-number) have on the depth of field?

• Increases the depth of field

• Decreases the depth of field

• Has no effect on the depth of field

• Changes the focus setting