Canon Model 7 - Manual (Page 14)

Exposure Setting
Exposure adjustment is done by adjusting
the shutter speed and the lens aperture.
Correct exposure is easily determined by
the coupled, built-in light meter.
SETTING THE SHUTTER SPEED . . .
Turn the shutter speed dial and set the
desired shutter speed figure to the index
mark.
iia.: ;
Index Mark
1 second, 1/2, 1/4, 1/8, 1/16, 1/30,
B ” tbulb; and “ T ”
The shutter can be adjusted to speeds of
1/60, 1/125, 1/250, 1/500, and 1/1000 of a second as well as
(time) exposures and " X."
The “B” exposure is used for exposures of over 1 second. The shutter stays open
as long as the shutter button is kept depressed. The "T” exposure is used for
long exposures. When the shutter button is pressed, it will remain depressed, even
after your finger is removed, leaving the shutter open. By turning the shutter spaed
dial slightly in either "B” or "X” direction, the shutter button snaps back into its
former position and the shutter closes.
The "X” scale reading is used for speedlight (electroflash) synchronization. The
shutter speed is approximately 1/60 of a second ; however, the effective time of
the exposure in this case depends on the peak performance of the speed light used.
• The figures on the shutter speed dial represent fractions of a second.
• Do not set the shutter speed dial between two figures. It must be set exactly
on a "click” stop. H