exposure-triangleExposure is a very essential and crucial part of the film industry. Correctly exposing the camera is very important and can determine the feel wanted for certain scenes and either make or break the shot being recored. What determines exposure? There are three changeable settings that control exposure, Aperture, Shutter Speed, and ISO.

Aperture controls the opening in the diaphragm in the lens, which in turn
determines the amount of light that passes through the lens and to the aperturefilm itself. Aperture manages depth of field, or what is in focus to the
camera. Aperture is measured in F-Stops. The larger the number F-Stop, the smaller  the amount of light is let though the lens. Example F/2 has a great deal of light whereas F/16 has such a tiny amount of light which is allowed in. These F-Stops personify different stops of light.

Shutter Speed determines at what speed the diaphragm opens and closes, which controls how long the light will enter the lens for. The shutter speed is measured in fraction of seconds and allows you to adjust Broad-tailed-Hummingbird-in-flight-650x432
capturing things at different rates of movement. If your shutter speed is faster than the movement of the thing you’re recording than your image will be outstandingly sharp.  For example, if you’re filming a humming bird, take into account that its wings flap about 55 times a second. At the setting 1/30th the wings are unclear and indistinct but change the shutter speed setting to about 1/250th the wings are visible and crystal clear.

ISO-setting-02

ISO settings controls how sensitive the cameras image sensor is to the
light that comes into the camera. The higher the ISO, the harder the image sensor works to form a picture but with of cost of a grainy low quality image called “noise”. The lower the ISO, the less the image sensor has to work, creating a clean high quality crisp image.

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