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Bevanj

Member Since 11 Nov 2017
Offline Last Active Today, 12:12 AM
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#401765 Z330 flash duration

Posted by Bevanj on 18 December 2018 - 12:06 AM

What the?!?!


#401288 Z330 flash duration

Posted by Bevanj on 30 November 2018 - 04:26 PM

Ok, Z330 0.1T numbers - these I am sure are correct. Wolfgang, light output is not linear relative to time. Have a look at the PDF, you'll see what I mean. 

Some interesting reading... 
https://strobist.blo...erstanding.html

-6.0  = 37us      = ~1/27000
-5.5  = 47us      = ~1/21000
-5.0  = 57us      = ~1/17500
-4.5  = 67us      = ~1/15000
-4.0  = 84us      = ~1/11800
-3.5  = 105us    = ~1/9500  
-3.0  = 137us    = ~1/7250
-2.5  = 179us    = ~1/5600
-2.0  = 230us    = ~1/4300
-1.5  = 312us    = ~1/3200

-1.0  = 421us    = ~1/2400

-0.5  = 577us    = ~1/1750
Full   = 2.06ms  = ~1/480



Some interesting stuff to be read from this - especially for those shooting mirrorless or point&shoot... If you are cranking up your shutter speed to 1/500 and above, at full power, you are starting to cut into the flash output and loose light in that way. For the rest of us shooting through an actual shutter maxing out at 1/200 sync speed, it's not so much of a concern. 

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