ISO measures a camera's sensor sensitivity to light, with higher ISO numbers allowing low-light photography. Aperture is the opening that controls the amount of light reaching the sensor, with larger apertures admitting more light and achieving shallower depth of field. Shutter speed controls exposure and can convey motion effects; faster shutter speeds freeze action while slower shutter speeds blur motion. The task is to take six photos in pairs illustrating the effects of different ISO, aperture, and shutter speed settings and present them side by side.

2. What is ISO?
• ISO is the measurement of how sensitive a digital camera's sensor is to
light.
• The higher the ISO, the more sensitive the image sensor and therefore
the possibility to take pictures in low-light situations..

5. Aperture
Aperture is the opening through which light travels towards the sensor.

6. How To Use Aperture?
• A large aperture (low f number)
allows more light to hit the
sensor. That means that you
can use a faster shutter
speed, either to capture fast
paced action, or to take photos
in low light. In high light a small
aperture decreases light and
prevents over exposure.
• Changing
the
aperture, changes the depth of
field. Depth of field is a
distance where the subject
appears sharp. Large aperture
(low f number) has small depth
of field. So if you want a tiny
part of your scene to be in
focus, use a large aperture.

7. Shutter Speed
• A camera's shutter speed can control exposure, but it's also one of
the most powerful creative tools in photography. It can convey
motion, freeze action, isolate subjects and smooth wateretc…

8. Creative Shutter Speed

9. Your Task!!
• Create a series of photographs which illustrates the
use of ISO, aperture and shutter speed in digital
photography.
• A series of six photographs. Two contrasting photos
for each element. E.g. for ISO you would shoot one
image using a low ISO creating a fine grain image
and another with a high ISO creating a grainy image.
• Using Photoshop present your images side by side in
a single A4 or A3 image.