Exposure Adjusting The Light Intensity - Sony CYBER-SHOT DSC-T25 User Manual

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 ISO sensitivity (Recommended Exposure Index)
ISO sensitivity is a speed rating for recording media that incorporates an image sensor that
receives light. Even when the exposure is the same, images differ depending on the ISO
sensitivity.
To adjust the ISO sensitivity, see page 39.
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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
ISO sensitivity (Recommended Exposure
= Recording sensitivity
Index)
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 39).
Metering Mode:
Allows you to change the part of the
subject to be measured to determine the
exposure (page 40).