Cactus KF36 Instruction Manual - page 11
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closest distance from your subject that the flash can be properly used.
The number in the center of the wedge is the longest distance. The
number above the colored wedge is the f-stop number to set your camera
lens to.
If the colored wedges fall between two different f-stops, refer to the
Automatic f-stop Settings and Corresponding Ranges (page 21) to
determine the best f-stop to use.
Example: You’re using ASA / ISO 100 (DIN 21) film with the Flash Zoom
Head in the NORM position. You select the RED mode. Your flash range
would be 5 to 30 feet (1.5 to 9.1 meters) and the f-stop setting would be
f4.0 (see photo A).
Select desired zoom position.
After setting up the Calculator Dial with the Zoom / Bounce Head in the
NORM position, you may wish to operate the flash unit with the Zoom /
Bounce Head in the WIDE and TELE position. When the Zoom / Bounce
Head is extended or retracted from the NORM position, the distance
scale on the Calculator Dial will change position automatically.
Example: With setting of ISO /ASA 100 (DIN 21), when the Zoom /
Bounce Head is set in the NORM position, the operating distance in the
Red mode is 5-30 feet (1.5-9.1 m). When the head is extended to TELE,
the operating range for the Red mode becomes 6-35 feet (1.8-10.6 m).
See photos A and B for comparison.
5.
Sufficient Light Indicator
The Sufficient Light Indicator (10) on your flash lets you know whether the light
output is sufficient for a proper exposure before you take a picture. It may be
used when shooting in any of the four automatic modes, and is especially
helpful in bounce light situations that normally require complex exposure
calculations. To test an exposure using the Sufficient Light Indicator:
Position your camera, flash, and subject just as you wish for the final
picture.
Set the Mode Selector Dial on the Flash Sensor to the automatic mode
color which matches the mode wedge color already selected on the
Calculator Dial.
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