Photography: As aperture shutter speed depth of field

2. Aperture
Aperture
Turning the aperture ring can change the diameter of the lens
diaphragm. This dictates the brightness of the image reaching the
film. Moving to the next f-number either halves or doubles aperture
size. Aperture size also affects depth of field. The trick is
remembering the smaller the number, the larger the aperture!
Find the range of f-stops on your camera.

3. Shutter Speed
The shutter can be set at different speeds, which determine
the length of time the film is exposed. Moving the shutter
speed dial to the next stop either doubles or halves exposure
time. Find the range of shutter speeds on your camera.

4. Depth of Field
Depth of Field is controlled by the Aperture setting.
It is concerned with the nearest and furthest parts
of the subject and affects how much of the image
will be in sharp focus. The smaller the f-stop
number, the shallower the depth of field.

5. Re-cap
 What does the aperture control?
 How do you change it?
 What effect does the speed of the shutter have?
 If you use a small aperture what would you expect the
depth of field to be – shallow or deep?
 Give an example of a large aperture f-stop
 In dark conditions would you expect your aperture to
be:
 Large or Small?
 In dark conditions would you expect your shutter speed
to be:
 Fast or Slow?

6. Make notes:
o In your sketchbook record what you
have learnt so far:
Aperture
Shutter speed
Depth of field
o Produce an image/diagram of your own
camera and label it to show where you
will find the settings.

7. Make notes:
o In your sketchbook record what you
have learnt so far:
Aperture
Shutter speed
Depth of field
o Produce an image/diagram of your own
camera and label it to show where you
will find the settings.