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Year 10 exhibitions exposure exploration
1.
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..
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 water etc…
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.