199A Speedlite : How to read the calculator dial.
| Article ID: ART117663 |
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Date published: 05/12/2015 |
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Date last updated: 08/17/2015 |
Description
How to read the calculator dial.
Solution
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There are three aperture index marks. The f/stop selected with the selector switch will be the numerical value under the index mark having the same color as the color in the display window. For example, when the film speed is ISO/ASA 100 and the red color is displayed in the window with the aperture selector switch, the the 2.8 under the red index mark is the selected f/stop for automatic flash
Automatic Coupling Range
The selection of the f/stop determines the coupling range with which proper exposure can be obtained. For your easy reference the same color as those used in the display window are used for the respective bands along the distance marks to show the f/stop automatic coupling range
When set at red, the distance scale where the red band stats and ends is the coupling range. For the red setting the coupling range is 5 to 35ft / 1.5m to 11m
- The coupling range is the distance applicable under the condition of light reflected back straight from the subject to the sensor of the flash. When the flash head is not facing the subject directly and tilted for bounce effect, the confidence light is to be is to be checked by first test firing the flash
- There is a gap in each of the color bands and this discontinuity is for indicating the shorter coupling (lessening of farthest working distance) in the case of using a wide adapter
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