This week's lesson was all about adding or subtracting light in your picture. You can read all about it here. Basically, it adds/subtracts light to adjust the automatic setting your camera picks when it reads the light, because it sets the setting according to the light it reads-which is not always the light for the actual picture you want.
I experimented with this a lot this week. The weather was B.E.A.U.T.I.F.U.L! We had been in the winter doldrums for what seemed like years-so this week's above normal temps and Sun (!!) seemed magical. I took pictures of the sky, the first Spring flowers and my dog. We got Dairy Queen, Italian Ice and went to the park. I have dozens of pictures on my computer of the same image-all with different Exposre Compensation Values. Here is the best of them (along with an incorrect exposure to compare it to) Oh, I shot everything in the "A" Aperture mode:
ISO: 800 Shutter: 1/640 Aperture: f 5.0 Exposure Bias: +.67
Correct Exposure makes this one look Sun-Kissed even though it is under a tree.
ISO: 800 Shutter: 1/80 Aperture: f 22 Exposure Bias: -.67
Here is another example. From these I realized that adjusting the Exposure Compensation I could lighten and deepen colors:
ISO: 400 Shutter: 1/4000 Aperature: f5.6 Exposure Bias: -1.0
This picture of the sky is too dark. It looks like Storm Clouds
ISO: 400 Shutter: 1/800 Aperature: f5.6 Exposure Bias: +1.33
This picture of the sky is too light. The color washes out.
ISO: 800 Shutter: 1/1600 Aperature: 5.6 Exposure Bias: +.33
This picture is just right.
Finally, took these pictures today. These two pictures illustrate how just a small change in Exposure Compensation can make a difference.
ISO: 800 Shutter: 1/640 Aperature: 5.0 Exposure Bias: +.67
This picture is good...
But this picture is just a little better. More color. More definition. Only one step up in Compensation
ISO: 400 Shutter: 1/320 Aperature: f5.6 Exposure Bias: +1.0