Flash Power
Apr 19, 2013 08:57:40 #
Hello everyone, Is it true that let say f/11 puts out more power than f/5.6 ...I thought it was the other way around..I'm talking about off camera flash,with speedlights and/or strobes...Thanks for your feedback...
Apr 19, 2013 09:01:27 #
If your lens aperture is set at f/11 your flash will neet to put out 4x more light than if it were set at f/5.6.
Apr 19, 2013 14:52:29 #
GoofyNewfie wrote:
Correct.If your lens aperture is set at f/11 your flash will neet to put out 4x more light than if it were set at f/5.6.
Apr 20, 2013 06:38:18 #
Rob G. wrote:
Hello everyone, Is it true that let say f/11 puts out more power than f/5.6 ...I thought it was the other way around..I'm talking about off camera flash,with speedlights and/or strobes...Thanks for your feedback...
In addition to the comments already provided, you can think about the aperture size for f/11 vs f/5.6. The wider the aperture, the easier it is for the light to reach the sensor. When compared to f/5.6, f/11 is 2 stops narrower which requires the flash to work 4x harder due to the inverse square law which is a key property of light.
Apr 20, 2013 11:56:16 #
Apr 22, 2013 06:37:27 #
Dun1
Loc: Atlanta, GA
Some of the more experienced flash users not use ISO 800 it gives you a shorter recycle time and will not cause your flash to overheat.
Here is a link to a Gary Fong You Tube flash setting for flash
http://www.youtube.com/watch?v=mBf3KCBvVRQ
Here is a link to a Gary Fong You Tube flash setting for flash
http://www.youtube.com/watch?v=mBf3KCBvVRQ
Apr 22, 2013 23:43:17 #
Dun1 wrote:
The overheat problem is associated only with the older SB-900, not current SB-910 model.Some of the more experienced flash users not use ISO 800 it gives you a shorter recycle time and will not cause your flash to overheat.
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