Wednesday, December 1, 2010

review of photo terms

ISO high ISO = grainy. It is the sensitivity to light of the sensor. When it’s dark, you use a higher ISO.

DIAPHRAGM - controls the amount of light entering the camera. controls the size of the hole, or aperture, thereby permitting more or less light to pass through the lens to the film.  there are 8 blades in a camera  


APERTURE: determines how much light is let into the camera. enabling the aperture to be made wider or narrower, thereby letting in more or less light. 

SPEED  determines how quickly the picture is taken. The slower the shutter speed, the more light the camera lets in. Minimum speed to hold camera = 130/1. 
DEPTH OF FIELD how much of the picture is in focus. The higher the aperture, the whole picture is in focus. The lower the aperture, the background will be blurred. If you take pictures close, you’ll have a small depth of field. If you take pictures far away, you’ll have a large depth of field. Pictures taken with a telephoto lense have a small depth of field



KELVIN DEGREES: you can change the setting based on what type of light you’re in. 5200 degrees is normal light. Tungsten light is 3200 degrees. The higher the degrees are, the more blue the picture is.

LIGHT METER: a meter in your camera that tells you the amount of light that is entering your camera. If you want your picture to be brighter, you change the light meter to + numbers. If you want your picture to be darker, you change the light meter to – numbers.
     -Two different settings: one for pictures taken w/out flash, and another when using the flash.

-Minnie

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