Vivitar VIV-DF-186 Flash Memory User Manual


 
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Important Notes for Flash Photography and Maintenance
1. After each picture, wait for two seconds for the flash to fully recharge before
taking the next shot, even when the ready light is on. This will help to prolong the lifespan
of the flash tube. It will also allow you to attain the full charging capacity of the flash
capacitor for precise flash photography.
2. For best results, keep your flash at least at about six feet away from the subject you are
photographing.
3. In the event that the flash exposure is incorrect (over or under exposed or green auto
check light does not light up),you may take either one or more of the corrective actions: (1)
move closer to the object (2) re-adjust your bounce angle (3) Increase ISO* setting.
4. Bounce should only be used on lighter color ceilings or white walls. Note that when using
this feature, 2-3 f/stop of light will be lost due to the reflection.
*Note: In digital photography, the ISO number notes how sensitive the image sensor is to the
amount of light present. The higher the ISO number, the more sensitive the image sensor is to
light and therefore the possibility to take pictures in low light situations increases.