8
Basic techniques for better images
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 (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.
Exposure
Adjusting the light intensity
Overexposure
= too much light
Whitish image
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 34).
Metering Mode:
Allows you to change the part of the
subject to be measured to determine the
exposure (page 37).
Correct exposure
Underexposure
= too little light
Darker image
High ISO sensitivity
Records a bright image even in dark locations while increasing shutter speed to
reduce blur.
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
Index)
=
Recording sensitivity
Exposure:
