Camera sensitivity - ISO

Five camera sensitivity settings can be selected: Auto, 50, 100, 200, and 400; the numerical values are based on an ISO equiva- lent. ISO is the standard used to indicate film sensitivity: the higher the number, the more sensitive the film. Camera sensitivity is set in section 3 of the P, A, S, and M menus (p. 44).

Sensitivity

Auto

Digital zoom

Off

Color mode

NaturalColor

Sharpness

Normal

Contrast

Normal

The auto setting automatically adjusts the camera sensitivity to the light conditions between ISO 50 and 200. When any other setting than auto is used, “ISO” and the set value will be displayed on the monitor.

A specific sensitivity setting can be selected. As the ISO value doubles, the camera sensitivity dou- bles. Like grain in silver-halide film that increases with speed, noise increases with sensitivity in digi- tal imaging; an ISO setting of 50 will have the least noise and 400 will have the most. An ISO setting of 400 may allow the camera to be hand-held in low-light conditions without the need of a flash.

The affect of noise with exposures of one second or longer is reduced by the noise-reduction func- tion in section 3 of the setup menu (p. 90).

Flash range and camera sensitivity

The flash range is measured from the front of the lens. Because of the optical system, the flash range is not the same at the lens’ wide-angle position as it is at the telephoto position.

ISO setting

Flash range (wide angle)

Flash range (telephoto)

AUTO

0.2 - 4.0m (0.7 - 13.1ft.)

1.2 - 2.5m (3.9 - 8.2ft.)

50

0.2 - 2.0m (0.7 - 6.6ft.)

1.2 - 1.3m (3.9 - 4.3ft.)

100

0.28 - 2.9m (0.9 - 9.5ft.)

1.2 - 1.8m (3.9 - 5.9ft.)

200

0.4 - 4.0m (1.3 - 13.1ft.)

1.2 - 2.5m (3.9 - 8.2ft.)

400

0.56 - 5.7m (1.8 - 18.7ft.)

1.2 - 3.6m (3.9 - 11.8ft.)

62Advanced recording

Page 62
Image 62
Konica Minolta MS-A406, 109678, 9222-2733-11, 0406 Camera sensitivity ISO, Flash range and camera sensitivity