UNIT 3- EXPOSURE

Question 1

What are the three components that make up exposure

Answer 1

• Aperture: The size of the opening in
  the lens when a picture is taken
• Shutter Speed: The amount of time
  the shutter is open to let light into the
  lens
• ISO: The sensitivity of the medium
  to absorb light

Question 2

Overexposure

Answer 2

Why: If you leave your lens open for a long time you let too much light in
How to tell: washed out

Question 3

Underexposure

Answer 3

Why: if you dont leave lens open long enough you dont let enough light into your camera
How to tell: picture is too dark

Question 4

Characteristics of F-Stops

Answer 4

• Smaller F-stops (2.8, 4, 5.6) = a larger opening of the lens, lots of light into camera, shallow depth of field (close up in focus)
• Larger F-stops (11, 16, 22) = a smaller
  opening of the lens, less light into camera, large depth of field (far away in focus)

Question 5

How are the series of aperture numbers arranged/set up?

Answer 5

Each of these numbers correspond to the size of the opening in the lens and controls the volume of light coming into the camera. Arranged so each number has half or double the light intensity as the one next to it.

Question 6

What happens to the light when you click your aperture ring up one f-stop?

Answer 6

Double light intensity

Question 7

What happens to the light when you click your aperture ring down two f-stops?

Answer 7

Light intensity is decreased by 4 (four times less light)

Question 8

What is Aperture?

Answer 8

The size of the opening in the lens when a
picture is taken
Aperture controls the amount of light that
enters the camera

Question 9

What is Aperture used for?

Answer 9

Controlling the depth of field of a picture

Question 10

Define shutter speed.

Answer 10

The amount of time the light is allowed to enter the camera

Question 11

What is shutter speed?

Answer 11

Shutter speed is the amount of time you open the diaphragm in the lens allowing the camera to capture the objects in the picture and controlling how long light is allowed in.

Question 12

What is ISO?

Answer 12

The sensitivity of the medium to absorb light.
ISO stands for International Standard Organization which is the industry standard scale which light is measured

Question 13

What happens when you leave the lens open too long?

Answer 13

too much light comes in and motion is captured as a blur

Question 14

What happens when you close the lens quick?

Answer 14

not enough light enters the camera and the motion will be captured frozen in mid air.

Question 15

higher ISO

Answer 15

the more sensitive the medium (film) is to light
Grainy picture and more light

Question 16

What is Depth of Field?

Answer 16

The area of sharpness (from near to far) within a photograph, or the areas that are in focus (from near to far)

Question 17

lower ISO

Answer 17

the less sensitive the medium (film) is to light
picture quality is good but dark

Question 18

What must you do to ensure a properly exposed negative?

Answer 18

Combination of shutter speed and aperture that lets in right amount of light for that scene

Question 19

Timing of shutter speeds: if there is “ next to a number example 2” how long is the shutter speed.

Answer 19

The shutter speed is in seconds when “ is next to it. The speed is slow which will cause the photo to be blurry

Question 20

Timing of shutter speeds: if the number is 1/x example 1/60 how long is the shutter speed and what is the result?

Answer 20

It’s is as fast as any fraction of a second. The speed is so fast the photo will be clear.

Question 21

How does the shutter speed and the aperture relate to each other and used in combination to make good exposures

Answer 21

For motion shots:
Adjust the shutter speed and use aperture to counter balance

Question 22

Definition of Exposure

Answer 22

the total amount of light that is allowed
to fall onto a medium, the memory
card in your digital camera or cell
phone camera.

Question 23

Say we have a high ISO of 1600 (Sensitive and able to absorb lots of light).
What will we have to do to either Aperture or Shutter speed to get a perfectly exposed picture (balanced in the light meter)?

Answer 23

Make the shutter speed faster and reduce the light coming into the camera (less time for the light to come in)
Make the aperture higher and reduce the light coming into the camera (smaller hole for the light to come in)

Question 24

what is the Sunny 16 rule?

Answer 24

Setting your f stop/aperature at 16 ( F/16 )
Setting your shutter speed at 1/125 - nikon and 1/250 canon
this keeps the light balanced