Courses‎ > ‎Digital Photography 1‎ > ‎

THE EXPOSURE TRIANGLE

Learning Goal
- Students will understand the importance of the exposure triangle
- Students will understand how the exposure triangle affects their final image
- Students will be able to use shutter speed to imply motion in their photos
ferris wheel
Does your picture have correct EXPOSURE? Exposure is the amount of light that falls on your sensor or film. 

Too much light and your picture will be overexposed, or washed out.

overexposed

Too little light and your picture will be underexposed, or too dark.

underexposed

Which one is worse, an overexposed photo or an underexposed photo? 

There are three main factors that impact your exposure: aperture, shutter speed, and ISO. These have been called the exposure triangle. We will talk about what these are and how to use them below. Later this year, we'll look at how to break some of these rules.

ISO Analogy - Good analogy about worker bees and ISO
ISO - Article with guidelines and examples
Aperture - Good article about aperture for beginners 
Shutter Speed - Good article that covers the different areas of the exposure triangle
Aperture's effect on Shutter Speed - Talks about how they relate

Trick Your Camera - Article on controlling aperture and shutter speed with a point and shoot

In class, we'll look at an old camera to demonstrate these concepts.

Fast Shutter Speed - Freeze Action
Slow Shutter Speed - Imply Motion

TRICKS

- Shutter Speed Trick - Focus lock and twist camera while taking the picture

TIPS

- Steady your camera for slow shutter speeds
- Use a timer so you are not touching the camera for slow shutter speeds
- Use a slow shutter speed app or long exposure app
- Use multi-shot or continuous shooting for action shots

The Challenge - Shutter Speed 25 Pts

  • Take at least 25 new/original SHUTTER SPEED pictures (shot both on school grounds and away from school)
  • Transfer the pictures to your computer or Google Drive
  • Choose your best three photos to edit and turn in
  • Use and turn in the Self Assessment Rubric & Critique to self evaluate and reflect on your photos
  • When you are finished, meet with me to discuss your project and get feedback
  • Add one of your best shots to this collaborative page. Comment on one other person's picture.