Sony 3-287-969-15 (1) User Manual

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Shooting an image the way you want it 
(Exposure mode)
With a single lens reflex camera, you can adjust the shutter speed (how 
long the shutter is open) and aperture (the range that is in focus: depth of 
field) to enjoy a variety of photographic expressions.
For example, you can use a fast shutter speed to shoot the ephemeral shape 
of a wave, or you can accentuate a flower by opening the aperture to put 
everything in front of and beyond the flower out of focus. These are a few 
of the effects you can enjoy with your camera (pages 59, 61).
Adjusting the shutter speed and aperture not only creates the photographic 
effects of movement and focus, but also determines the brightness of the 
image by controlling the amount of exposure (the amount of light the 
camera takes in), which is the most important factor in photo shooting.
Changing of picture brightness by the amount of exposure
When using a faster shutter speed, the camera opens the shutter for a 
shorter time. This means less time for the camera to take in light, resulting 
in a darker picture. To take a brighter picture, you can open the aperture 
(the hole through which the light passes) to some extent in order to adjust 
the amount of light the camera takes in at one time. 
The brightness of the picture adjusted by the shutter speed and aperture is 
called “exposure.”
This section will show you how to adjust the exposure and enjoy various 
photo expressions by the use of movement, focus, and light. You can find 
out the right way to shoot the image and the subject you like.
Amount of 
exposure
low
high