Sunday, 4 October 2009
Aperture and shutter speed (SLR)
Aperture:
The aperture depends on how fast the subjuct that is being photographed is moving. It is measured in f stops, the smaller the f stop number, the larger the opening of the lens will be. It is the opening in which light travels through the camera, the wider the aperture the more blurred the background of the image will be, but the subjuct that is closer to the camera, will be sharper. With a narrow aperture the sharpness will be very defined. The aperture is controlling the light, meaning that the wider the aperture the more light will be in the image, this is controlled by the iris.
Shutter speed:
The shutter speed is measured in seconds, this is the time in which the lens will stay open to create different effects of a photograph. This is also known as exposure time, exposure is about how much light is let into the camera, to little result sin a dark photo and to much, creates a washed out effect. The speed that the lens is open is normally self programmed on most cameras, but photographers wish to change the shutter speed to create different effects themselves. The speed the shutter is open for, mostly depends on the weather or how much light is in a room. (how sunny or dull the light is)
The aperture depends on how fast the subjuct that is being photographed is moving. It is measured in f stops, the smaller the f stop number, the larger the opening of the lens will be. It is the opening in which light travels through the camera, the wider the aperture the more blurred the background of the image will be, but the subjuct that is closer to the camera, will be sharper. With a narrow aperture the sharpness will be very defined. The aperture is controlling the light, meaning that the wider the aperture the more light will be in the image, this is controlled by the iris.
Shutter speed:
The shutter speed is measured in seconds, this is the time in which the lens will stay open to create different effects of a photograph. This is also known as exposure time, exposure is about how much light is let into the camera, to little result sin a dark photo and to much, creates a washed out effect. The speed that the lens is open is normally self programmed on most cameras, but photographers wish to change the shutter speed to create different effects themselves. The speed the shutter is open for, mostly depends on the weather or how much light is in a room. (how sunny or dull the light is)
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