How the Shutter Button Works
The EOS camera’s shutter button can be depressed halfway or all the way. There is a click stop at the halfway point.
Pressing the Shutter Button Halfway or Fully
The shutter button works as described below.
When it is pressed halfway:
• Autofocusing (AF) is activated. When the subject is in focus, the AF point which achieved focus will flash, the beeper will sound, and the focus confirmation light will light up.
• Also, the shutter speed and aperture are set and displayed on the LCD panel and in the viewfinder.
When it is pressed fully:
• The shutter is released to take the picture and the film advances by one frame.
If an Extender is used and the maximum aperture of the lens becomes smaller than f/5.6 (the lowest f/number), autofocusing will not operate.
Camera movement during the moment of exposure is called camera shake. Camera shake can cause blurred pictures. To prevent blurred pictures due to camera shake:
·Hold the camera steady (→page 20).
·Use your finger tip to touch the shutter button, grasp the camera with your entire right hand, then press the shutter button gently.
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