15
Bounce Flash
Your flash can be used in the manual “M” mode for bounce flash at distances
beyond the maximum automatic operating range.
First, set Mode Selector Dial to manual “M”. To determine the proper exposure
when using bounce flash in manual mode, use any ONE of the following
methods:
In rooms of average size and color, a good general rule is to open your
lens TWO f-stops wider than if you were shooting direct;
OR...
After setting the proper ISO / DIN number on the Calculator Dial, find the
total flash-to-reflector-to-subject distance on Calculator Dial and note the
f-stop indicated above that distance. Open your lens ONE f-stop wider
than indicated on the dial;
Example:
Photographing at a flash-reflector-subject distance of 20 feet
with ISO 100, flash f-stop is f5.6, but you must set your camera lens to
f4.0.
OR…
If the total bounce distance exceeds the maximums appearing on
Calculator Dial, measure the distance from the flash to the reflecting
surface to the subject. Divide that total distance into the flash Guide
Number for the film speed / ISO you are using and the Zoom / bounce
Head position. Note the resulting number (round off the nearest f-stop),
and open your lens ONE f-stop wider.
1.
2.
3.
Note: When figuring flash to subject distance using manual bounce
flash, be sure to consider the light absorption of the reflective surface.
Bouncing off surfaces such as curtains, for example, will add to the
effective distance between the flash, the reflector and the subject. To
ensure proper exposed pictures when bouncing off curtains or
acoustical tile ceilings, open your lens ONE additional f-stop over the
setting determined by any of the above methods.
Vari-Power
There are cases where you may wish to go beyond the basic “normal” manual
operation as explained above, such as flash fill-in outdoors, multiple flash light
ratio control, need for faster recycling time, faster action freezing or when you
want to use a specific f-stop not available in auto mode for depth of field
control.