Selecting the Shutter Speed
The red section of the scale
denotes instantaneous, shutter timed speeds, in fractions of a second
(500 - 1/500th sec., 1 - 1/1 - 1 sec.). Intermediate values between
clicks cannot be used therefore: always set shutter so that desired
speed figure is in the middle of the indicator window. This rule
also applies when pre-selecting depth-of-field. Only after clicking the
speed into position can the final adjustment of the exposure meter
pointers be mode with the diaphragm control wheel.
The green section of the scale
is for time exposures only and indicates the required exposure time in
full seconds. It is used only when unfavorable lighting conditions
require greater exposure, while at the same time further stopping
down in order to gain depth-of-field. After lining up the exposure
meter pointers, the green numbers indicate, in full seconds, the time
the shutter has to be kept open (→ time exposures, page 18).
Intermediate values can be used in the green shutter speed section.