When lever is wound, i.e., switched on, green sign is in
the window.
With the release of the shutter, i.e., switch off it turns to
red.
4. Set either the shutter speed or lens opening according to your photo graphic needs. (Read "Setting the lens" and
"Setting the shutter" carefully.)
5. Set Eye-level Waist level Change over Knob (F) at EL (Eye-level position) (Fig. 6) and while looking at your
subject through the Eye-level Eyepiece (S), rotate either Shutter Speed Dial (H) or F-Stop Ring (J) until the exposure
meter needle at the right side of the Viewfinder comes to the complete horizontal position... Now your subject is in
correct exposure. If the exposure meter needle is above the horizontal position, this is over exposure.
Change the shutter speed to faster speed or use smaller lens opening so that the correct exposure combination is made.
If, on the contrary, the exposure meter needle is found under the horizontal position indicating underexposure, you
must use a slower shutter speed or bigger lens opening. (Fig. 7)