Exposure
Exposure is the amount of light which reaches your camera sensor or film.
This video gives a good idea of how to put together the basics we learned last week together!
EXPOSURE COMPENSATIOn
Exposure compensation is a tool to change the way that light is read through the internal camera meter. It’s an easy fix for a dark subject with a bright background or any light source that may not be the focus of the photograph.
Your camera meters scenes to find an average 18% grey, just as with film cameras. Therefore sometimes objects that are supposed to be light end up looking too dark, and vice versa. Most cameras allow you to compensate for this by letting you change the exposure.
Often there is a button on the outside of the camera.
Sometimes, however, the exposure compensation is found in the MENU of the camera and will be shown as a scale.
Often there is a button on the outside of the camera.
Sometimes, however, the exposure compensation is found in the MENU of the camera and will be shown as a scale.
Exposure compensation can be applied in Aperture Priority, Shutter Priority or Program mode. It's also measured in stops: the exposure indicator scale you see in the viewfinder or on your camera's rear display has stops clearly marked on it. You can usually increase or decrease the exposure by up to five stops.
Assignments
Post the assignments to your website:
- Under " Camera Basics" Tab
- Make a sub tab/page titled "Exposure"
- Upload the photos to your website.
- Add any other notes that will help YOU remember or understand the lesson/concept. Feel free to copy and paste from the class website or another site, just REMEMBER to GIVE CREDIT ("Sources" works well...)
ASSIGNMENT - EXPOSURE COMPENSATION
The assignment is to take a photograph using the camera light meter reading and then change the exposure by one stop – either up (lighter) or down (darker) – to see the difference it makes to the picture. Upload 4-6 images to your website. Label each one with the exposure.
Answer these questions in a short paragraph:
Answer these questions in a short paragraph:
- Define exposure.
- What happens if there is too much exposure? Too little?
Assignment - The Exposure Triangle in Action
Answer each question below and then take pictures to demonstrate your understanding. Upload and include the photos you take to your website.
1. a) How does Shutter Speed affect the look of a photo?
b) Take 5 pictures of the same event using different shutter speeds (use Tv mode on your camera). Then, in a brief paragraph, describe how the change in shutter speed affected the 5 pictures.
2. a) How does aperture affect Depth of Field?
b) Take 5 pictures of the same event using different apertures (use Av mode on your camera) and describe how the change in aperture effected the depth of field in the 5 pictures.
3. a) What is ISO, and how do you use this setting to take better pictures?
b) Take 3 pictures of the same event using different ISOs (use P mode on your camera) and describe how the change in ISO affected the 3 pictures.
4. What happens as you increase the ISO value?
5. When is a higher ISO Value required?
1. a) How does Shutter Speed affect the look of a photo?
b) Take 5 pictures of the same event using different shutter speeds (use Tv mode on your camera). Then, in a brief paragraph, describe how the change in shutter speed affected the 5 pictures.
2. a) How does aperture affect Depth of Field?
b) Take 5 pictures of the same event using different apertures (use Av mode on your camera) and describe how the change in aperture effected the depth of field in the 5 pictures.
3. a) What is ISO, and how do you use this setting to take better pictures?
b) Take 3 pictures of the same event using different ISOs (use P mode on your camera) and describe how the change in ISO affected the 3 pictures.
4. What happens as you increase the ISO value?
5. When is a higher ISO Value required?
- Post the assignment to your website:
- Under " Camera Basics" Tab
- Make a sub tab/page titled "Exposure"
- Upload the photos to your website.
- Record what settings were used (include: mode, F-stop, Shutter Speed, ISO).
- Write a sentence or two to discuss how the ISO impacted the photos.
- Write a short paragraph to answer the following questions (make a Title for your entry)
- Add any other notes that will help YOU remember or understand the lesson/concept. Feel free to copy and paste from the class website or another site, just REMEMBER to GIVE CREDIT ("Sources" works well...)