Exposure Adjusting The Light Intensity - Sony DSC-T50 Cyber-shot&reg Handbook

Basic techniques for better images
Exposure
Adjusting the light intensity
You can create various images by adjusting the exposure and the ISO sensitivity. Exposure is
the amount of light that the camera will receive when you release the shutter.
Adjusting the ISO sensitivity
ISO is unit of measurement (sensitivity), estimating how much light an image pickup device
(equivalent to photo films) receives. Even when the exposure is the same, images differ
depending on the ISO sensitivity.
To adjust the ISO sensitivity, see page 45.
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Exposure:
Overexposure
= too much light
Whitish image
Correct exposure
Underexposure
= too little light
Darker image
High ISO sensitivity
Records a bright image even when shooting in a dark location.
However, the image tends to become noisy.
Low ISO sensitivity
Records a smoother image.
However, when the exposure is insufficient, the image may become darker.
Shutter speed = Length of time the camera receives
light
Aperture = Size of the opening allowing light to pass
through
Recording sensitivity
ISO =
The exposure is automatically set to the
proper value in the auto adjustment mode.
However, you can adjust it manually using
the functions below.
Adjusting EV:
Allows you to adjust the exposure
determined by the camera (page 31).
Metering Mode:
Allows you to change the part of the
subject to be measured to determine the
exposure (page 43).