Sony DSC-P150 사용자 설명서

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Exposure
In addition to the focus and other settings, it 
is also important to adjust the exposure in 
order to take beautiful pictures.
Exposure is the amount of light that the 
CCD of the digital still camera is able to 
receive. This value changes according to 
the combination of the aperture and the 
shutter speed. When the amount of light is 
too large, the image becomes brighter 
(white), and when the amount of light is too 
small, the image becomes darker. The 
proper amount of light is called the “correct 
exposure”.
The correct exposure can be maintained by 
setting a faster shutter speed when the 
aperture value is reduced, or a slower 
shutter speed when the aperture value is 
increased from the correct exposure.
Adjustment by aperture
Aperture is the diaphragm of the lens part 
which adjusts the amount of light entering 
the camera. The aperture setting value is 
called the “Aperture value (F value)”.
Open (smaller F value)
The image tends toward 
overexposure (brighter).
The in-focus range 
narrows.
Close (larger F value)
The image tends toward 
underexposure (darker).
The in-focus range 
widens.
Adjustment by shutter speed
Shutter speed adjusts the time during which 
light enters the camera.
Faster
The image tends toward 
underexposure (darker).
Moving objects appear 
stopped.
Slower
The image tends toward 
overexposure (brighter).
Moving objects appear to 
flow.
When setting a slower shutter speed, we 
recommend using a tripod to prevent shaking.
Overexposure
Open the aperture
Set a slower shutter speed
Underexposure
Close the aperture
Set a faster shutter speed
Correct exposure