Optima Batteries P90 Digital Camera User Manual


 
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Shoot pictures using A, B, C, D, E and F
C (Aperture-Priority Auto) Mode
Set the aperture value and shoot pictures.
1
Rotate the mode dial to C.
2
Rotate the command dial to choose
the aperture value (f/-number).
When the camera is zoomed all the way
out, aperture can be set to values between
f/2.8 and f/8.0; at maximum zoom, aperture
can be set to values between f/5.0 and
f/8.0.
3
Focus and shoot.
At the default setting, the camera automatically selects
the focus area (one of nine) containing the subject
closest to the camera (A122).
B C (Aperture-Priority Auto) Mode
If the selected aperture would result in the picture being over- or underexposed, the aperture display
will flash when the shutter-release button is pressed halfway. Choose another aperture value and try
again.
B Note on Shutter Speed
When Multi-shot 16 is selected for Continuous (A118) the fastest shutter speed is changed to
1/2500 second, and the slowest shutter speed is restricted to 1/30 second.
D Aperture and Zoom
Aperture is expressed as an f-number, which is the ratio of the focal length of the lens to the effective
diameter of the opening (aperture) through which light enters the camera. Large apertures
(expressed by small f-numbers) let more light into the camera, and small apertures (large f-numbers)
let less light. This camera has a lens with a focal length of 4.6-110.4 mm and an aperture of f/2.8 to f/
5. When the camera is zoomed out, the f-number decreases. When the camera is zoomed in, the f-
number increases.
16
16
1/125
1/125
1/125
F2.8
F2.8
16
16
16
1/125
1/125
1/125
F3.2
F3.2
16