Nikon SB 11 instruction manual Exposure Calculator Dial, For Automatic Operation, Example

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Exposure Calculator Dial ®

For Automatic Operation

The SB-ll 's exposure calculator dial helps you select the usable range of £/stops for the speed of the film in use and the flash -to,subject distance. On the dial, there are three £/stops to choose from. Each £/stop determines the usable distance range in which you can obtain the correct auto- matic exposure. The automatic shooting ranges for the three £/stops are indicated by a set of curved color-coded lines near the center of the dial.

If the subject distance remains the same, the wider the aperture you select, the faster the recycling time of the speedlight and the greater the maximum shooting dis- tance, but the less depth of field in the final photograph.

Example 1

Conversely, if you choose a small aperture, the depth of field will be greater, but the recycling time will be longer and the maximum shooting distance is less. Therefore, in choosing an appropriate £/stop, you should take all these factors - depth of field, recycling time , and maximum shooting distance-into consideration.

The follOWing examples explain how to use the exposure calculator dial:

Example 1

If you are using ASAIISO 100 film, you can shoot subjects at distances from 0.6-9m (2-30ft) at £/4, 0.6- 6.4m (2- 21 ft) at £/5.6, and 0.6-4.5m (2-15ft) at £/8.

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