The Picture above is of a horse, dinosaur, orca whale, and another type of whale. This picture was taken on the floor of Mr. Hiller's classroom a few days ago. The horse is show clear while the others are blurry from the depth of field being set lower.

The picture above shows an orca whale, another whale, and a horse. This picture was taken on a desk in Mr. Hiller's classroom. This picture was taken with a higher depth of field, which made the orca blurry but the animals in the back clear.

depth of field

Depth of field is the range of distance around the focal point, which is sharp. The depth of field can vary depending on 3 things, camera type, aperture and focusing distance. Depth of field is usually when the objects closer to the point of focus are sharp, and there is a gradual transition to unsharp objects toward the back or in front of that object.
The diagram above shows how much a point needs to be blurred in order to be thought of as unsharp. The image below shows how the focal point is sharp, but each point afterward gets blurry. (Shown by how gray the circle gets)
So, objects farther away from the focal point become more and more blurry and out of focus so that the viewer of the picture can focus on the main part, without the distraction of the background. The depth of field can be set by using F-stops. The higher the f-stop, the less blurry the background will be. While a higher f-stop will make the focal point stick out even more.

Homecoming pictures

The picture to the left is of Zoe Waldron and Jessica Hanstad in the Junior hall attempting to do Mrs. Thurman's famous blow fish face. It was taken on wacky day, or Tuesday, which explains their clothes.









The picture to the left is also of Zoe and Jessica. However, this time there near Mr. Tiedeman's classroom where the sign for Monday's dress up day was posted. This picture was also taken Tuesday.










The picture to the left is of the Sophomore hall ceiling decorations. This picture was taken with a high exposure time, which is shown by the brightness of the image. Along with all the others, this one was also taken on Tuesday.









The picture to the left is of Mr. Compton in the high school gym in his wacky day outfit. This picture was taken with a low shutter time, or little/no flash. This picture was taken 6th period on Tuesday.

Action

Blurred action- Blurred action is when a picture is taken with a low shutter speed and more exposure time. Which makes an object or objects seem like they're still in motion. Like in the picture to the right.
The background and objects without movement are shown as a still image. While the cars and people are blurred, showing their motion. So the picture shows not only one instant in time, but a few.




Stopped action- Stopped action is when a picture is taken with a faster shutter speed and less exposure time. This makes the object, moving or not, be still like in the picture to the left.
When the picture was taken, the model was still moving. However, with the faster shutter speed the photographer was able to capture her in one instant. Even the purple object on the wall behind her, which could have been moving at the time the picture was taken is still.





The picture to the right is a comparison of blurred action and stopped motion. The soccer player in the top picture shows blurred motion, while the bottom shows stopped motion.









Panning-Panning is the horizontal movement of a camera. When used in photography it's used to show or suggest fast motion. The background will look blurry, but the main object will appear still. Like in the picture to the left. The car looks like it's moving pretty fast, which is suggested by the background being so blurry in the opposite direction that the car would be moving in. However, the car itself doesn't show motion.

Exposure

• Exposure is the amount of light collected by the sensor in your camera during a single picture.
• Pictures can either be too dark or washed out if left exposed too much or too little.
• Newer cameras determine the amount of exposure automatically.
• Cameras use shutter speed (the amount of time the sensor is exposed to the light) and aperture (the lens opening size that lets light into the camera.
• Shutter speed is measured in fractions of a second.
• Aperture is measured in f/stops.
• There aren't constant shutter speed or constant aperture because they control different things also.
• Shutter speed can also be used to freeze subjects in midair or blur water.
• Aperture controls the depth-of-field or focus.
• With most digital single lens reflex cameras you can change the sensitivity of the sensor when collecting light. (ISO Speed)
• The higher an ISO speed is (100- 800 normally) the faster a camera collects light. It also adds more noise to the picture with lower speeds.

Notes from:
http://www.picturecorrect.com/photographytips/ExposureBasics.htm