Photography Basics Unit 2, Lesson 4

What does the aperture of a camera lens control?

• The ISO settings of the camera

• The depth of field of the image

• The angle of view of the lens

• The amount of light reaching the image sensor

What happens when you open up the aperture of a lens?

• The angle of view becomes narrower

• Less light enters the lens

• The depth of field increases

• More light enters the lens

What does a lower f-stop number indicate?

• A slower shutter speed

• A smaller lens opening

• A higher ISO setting

• A larger lens opening

What happens when you change the aperture from f/8 to f/11?

• The ISO setting changes automatically

• The depth of field decreases

• Half as much light enters the lens

• Twice as much light enters the lens

What is a half-stop in terms of aperture settings?

• A setting halfway between two ISO values

• A setting halfway between two shutter speeds

• A setting halfway between two f-stops

• A setting halfway between two angles of view

What is the relationship between f-stop and shutter speed?

• They determine the angle of view

• They are unrelated

• They have a reciprocal relationship

• They both control ISO settings

What is a fast lens characterized by?

• A high ISO setting

• A small maximum aperture

• A large maximum aperture

• A narrow angle of view

What happens to the lens aperture when you press the shutter button on a DSLR?

• It opens wider than the maximum aperture

• It adjusts the ISO setting automatically

• It closes down to the chosen f-stop

• It stays at its maximum aperture

What is the angle of view provided by a short-focal-length lens?

• Wide angle of view

• Narrow angle of view

• Magnified angle of view

• Distorted angle of view

What does a long-focal-length lens do to objects?

• Makes them appear farther away

• Magnifies them and makes them appear closer

• Reduces their depth of field

• Increases their ISO settings