Sunday, December 12, 2010

Photography Terms By: Sarah Cibelli (Cibelli117)

Diaphram- When you look into the lens of your camera, it is the hole you see. This hole (the diaphram) controls how much light enters the camera. The smaller the diaphram = less light and you would use this when it was very bright out so your photo is not over exposed. The larger the diaphram the more light is allowed in and you would use this in a dark setting to get more light into the camera to illuminate your photo.

Aperature- This is closely related to the diaphram. Again, the smaller the aperature, the less light and the larger, the more light is let in.

Shutterspeed- This determines how long the shutter stays open after snapping a photo. The longer the shutter is open the blurrier your photo will be unless you have a tripod. This is caused by the natural shake of your hand. Shutterspeed is determined in the fraction of a second. For example 1/1000 is much faster speed than 1/60.

Depth of Field- With a telephoto lens you have a smaller depth of field because the images ten to be closer up, so the background is blurry and your object is in focus. A wide-angle lens you tend to have a greater depth of field.

ISO (sensor sensitivity)- ISO determines how sensitive the image sensor is to the amount of light present. The higher the ISO the more sensitive it will be, therefore with a high ISO you are able to take a photo in low light. You would you and ISO of 800 or 1600 in low light but in normal light for example outside you may only need an ISO of 200 or 400.

Kelvin Degrees (Color Temp) - This is a setting based off the type of light your in. You can adjuct the degrees on your camera to get a different affect you want, for example more red or blue or yellow in your photo.The higher the degrees the more blue your picture will be.


SARAH CIBELLI

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