Year 10 exhibitions exposure exploration
Preview:
DESCRIPTION
Citation preview
- 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..
- Aperture Aperture is the opening through which light travels
towards the sensor.
- 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.
- 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
- Creative Shutter Speed
- 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.