The exposure triangle is made up of three variables that control the exposure of an image. If you change one you will have to change the others to balance the exposure of the image.
Exposure
- When the image is over exposed (too bright) it loses detail in the bright areas
- When it is under exposed and dark the image loses detail in the textures on the image and has less contrast.
How to get a correctly exposed image?
Use the cameras build in light meter, either on the screen on the back or in the viewfinder to adjust the settings.
As you change the settings on the camera, the box underneath will move to show you whether your image is currently under or over exposed.
Aperture examples
Shutterspeed examples
ACTIVITY
1. Create a slide on your visual diary titled Task 4: Camera Settings and Exposure
2. Have a read through this page on your own > http://www.canonoutsideofauto.ca/learn/
3. Write down –
- What aperture is and what it does?
- What shutterspeed is and what it does
- What ISO is and what it does
4. Copy an image of the exposure triangle on the same slide.
5. Go to: http://www.canonoutsideofauto.ca/play/
Play around with adjusting these settings, save 3 shots using Manual mode (Aperture – 2.8, 8, 22), adjust the shutter speed and ISO to create a good exposure (Look at the light meter)
6. Add these shots and your response to the below question to a second slide.
- what do you notice about the shutter speed as you change the aperture setting?
Note: I encourage you to play around with this tool if you are unsure on camera settings as we will be using this as part of our In class written task in Week 5. If you finish the above work early, try the challenge (http://www.canonoutsideofauto.ca/challenge/) record your result on your visual diary as well.
Photography with Tiffany 