Digital+Photography-Digital+SLR+Worksheet

**Write an explanation of each of these important photographic concepts:**
=**Use this website and the Digital SLR Information sheet for reference:**= []


 * I have started the worksheet for you. Complete the rest of the terms using the information here and the web search you've done. Try to post images that are applicable and will help us understand these terms better. Please make sure you put your name in by the explanations you contribute.

Aperture:** The size of the opening in the lens. (a smaller aperture has a bigger f/stop number--lets in less light) The numbers represent fractions.

Noise is represented by strangely-colored pixels present throughout your photograph. Especially on older or more compact digital cameras, noise can become a real issue. Take a few different photographs at different ISO settings and learn how much noise you can tolerate.The higher the ISO the more noise will be evident on your photo. Noise has to do with the speed of the camera and also the available light in the situation you are shooting in. Back in the days of film photography photographs would get grainy, where you could see the actual grains of the silver on the film if the exposure was low. This is similar to noise now, but has to do with the pixels.
 * Noise**:

**Depth of field:**
is the portion of a scene that appears sharp in the image. The DOF is determined by the subject distance (that is, the distance to the plane that is perfectly in focus), the lens focal length, and the lens f-number (relative aperture). Except at close-up distances, DOF is approximately determined by the subject magnification and the lens f-number. For a given f-number, increasing the magnification, either by moving closer to the subject or using a lens of greater focal length, decreases the DOF; decreasing magnification increases DOF. For a given subject magnification, increasing the f-number (decreasing the aperture diameter) increases the DOF; decreasing f-number decreases DOF. **//Generally in photography: The smaller the aperture (f-stop) opening the better your depth of field and the more objects that will be in focus in the foreground and background. The larger the aperture opening (f-stop) the worse your depth of field and the less objects that will be in focus in the background and possibly the foreground depending how close they are to the lense. So f-stop and lense focal length and the distance of the subject determine the depth of field.//**

**//Find some photographs that show depth of field variance and post them here. (Britny/Rachel)//**


Histogram: (Chris)**
 * Shutter Speed: exposure time, length of time a shutter is open or film exposed to light(Erin)**
 * [[image:shutter-example.jpg]]
 *  A simple graph that displays where all of the brightness levels contained in the scene are found, from the darkest to the brightest. These values are arrayed across the bottom of the graph from left (darkest) to right (brightest). The vertical axis (the height of points on the graph) shows how much of the image is found at any particular brightness level. **



Burst Mode: (James) A mode on your camera that captures a rapid succession of pictures. This mode can be used to capture moving targets such as. Whether it's a sports action shot, or an animal on the run, switching to burst mode helps guarantee that you'll get at least one good shot. A problem, though, with this mode is focus. As your subject moves father or closer to the camera it goes out of focus. This problem is fixed in most newer SLR cameras, and they usually keep the subject focused while in this mode.

White Balance: (Emily) White balance deals with color temperature, or the quality of a light source. It is when the colors that we see appear that way on the camera. The first one is the correct way to use white balance and the second one is the incorrect way.

A device on a camera that gives a delay between the pressing of the shutter release and the shutter firing. This is useful in taking pictures of oneself, as well as making pictures less blurry. This is because when you press the shutter release you shake the camera a little while the picture is taken, by having a say, 2 second self timer, you can hold the camera perfectly still while the picture is being taken. This guy set up his self timer for about 2 seconds then ran away**
 * Self timer: (Jake)

Pixels is reading images as dots of light. **
 * Pixels: (Adele)


 * Auto Focus vs Manual Focus: (explain what they are and then explain when you would choose each and why?) (Ali)**

**ISO (international standardization organization)** : (Megan)

File Format: Jennifer/Sydney
=== **.tiff** – Tagged Image File Format. These are used for storing images such as line art and photographs. ===