This week we are going to explore exposure compensation!
What is exposure compensation?
Exposure compensation is a feature that DSLR cameras, and even some point and shoots have that allows you to manually adjust the exposure of your picture.
When your camera takes a picture the light meter inside of your camera reads the available light and automatically adjusts the exposure for you. However, the light meter does not always read the available light correctly, the ability to adjust your exposure manually can save many a picture.
Exposure compensation is measured in values ranging anywhere from +5 to –5 (varies in cameras). A positive exposure value will allow in more light, and a negative exposure value will allow less light in.
The way I remember this is + (positive) = add light, and - (negative) = subtract light.
Choosing a correct exposure value helps preserve detail in both dark and bright areas of an image.
Which exposure value should I use?
There is no easy answer to that question, it differs in every picture you take! So I will give you some examples instead.
Lets say you are outside on a sunny day, but you want to use a large aperture to create a shallow depth of field in your picture. You take the shot and you notice it seems blown out, so to fix this you would need to subtract light by adjusting the exposure value to a negative number.
The first picture was taken with my exposure comp. on zero (f/1.8, ISO 200, 1/1250sec)
The 2nd picture was taken with my exposure comp –0.7 (f/1.8, ISO 200, 1/2000sec)
You can see the 2nd picture shows more detail and has richer colors as well.
Now lets say you are taking a picture in a shaded area, and your image seems too dark, and lacks detail. Then you would want to add light to your image buy adjusting the exposure value to a positive value.
First picture taken with my exposure comp. on zero (f/1.8, ISO 800, 1/13sec)
2nd shot taken with my exposure comp on +0.7 (f/1.8, ISO 800, 1/8 sec)
See how it lightened up the picture?
When I am out doing photo shoots, I use exposure compensation all the time. Especially since I take most of my pictures outdoors, and the light can vary so much. It really can help to bring out detail in a persons face.
The best way to learn exposure compensation is by experimenting.
Where is my exposure compensation button?
Your cameras exposure comp. button should look like a square with a plus and minus symbol in it.
Hold it down and turn your dial to make changes, you should see this info in your LCD screen as you are doing it.
Check out Lolli’s blog to see it on a Canon.
****Note: it should be noted that exposure comp only works on M,A,S,or P modes (at least on my Nikon that is how it is)
The challenge:
Experiment with your cameras exposure compensation, take an example of a correctly exposed picture and an incorrectly exposed picture.
For and added challenge find a sign of Spring to take a picture of. Spring is in the air!
***Remember + (positive) = add light, and - (negative) = subtract light.
Don’t forget to come back next Tuesday to link up and show us what you have learned!