Sony DSLR-A100 - Manual (Page 44)

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You can adjust the ISO sensitivity and switch the Zone Matching setup.
ISO is a unit of measurement of sensitivity to light. The larger the number, the higher the
sensitivity.
1 Display the ISO/Zone Matching screen with the function dial and the Fn button (page 43).
2 Select the desired value with v/V/b/B on the controller, then press the center of the controller.
• [Hi200] and [Lo80] options are used for Zone Matching (page 45).
( : The default setting)
• When [ISO] is set to [AUTO], the ISO sensitivity is automatically adjusted between ISO 100 and ISO
800, however, if the mode dial is set to M, it is fixed at ISO 100.
• The built-in flash range (the range within which the correct exposure is provided) depends on the aperture
value and ISO sensitivity. Refer to the following table to determine the shooting distance.
Setting ISO/Zone Matching ISO WB D-R DEC
ISO
AUTO Automatically adjusts the ISO sensitivity.
100 Select a large number when shooting in dark locations or
shooting a subject moving at high speed, or select a small
number to obtain high image quality.
200
400
800
1600
Aperture
ISO setting
100 200 400 / AUTO 800 1600
F2.8 1 – 4.3 m
(39 3/8 – 169
3/8 inches)
1 – 6 m
(39 3/8 – 236
1/4 inches)
1.4 – 8.6 m (55
1/8 – 338
5/8 inches)
2 – 12 m
(78 3/4 – 472
1/2 inches)
2.8 – 17 m (110
1/4 – 669
3/8 inches)
F4.0 1 – 3 m
(39 3/8 – 118
1/8 inches)
1 – 4.3 m
(39 3/8 – 169
3/8 inches)
1 – 6 m
(39 3/8 – 236
1/4 inches)
1.4 – 8.6 m
(55 1/8 – 338
5/8 inches)
2 – 12 m
(78 3/4 – 472
1/2 inches)
F5.6 1 – 2.1 m
(39 3/8 – 82
3/4 inches)
1 – 3 m
(39 3/8 – 118
1/8 inches)
1 – 4.3 m
(39 3/8 – 169
3/8 inches)
1 – 6 m
(39 3/8 – 236
1/4 inches)
1.4 – 8.6 m
(55 1/8 – 338
5/8 inches)