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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 02 Sep 2011 (Friday) 22:32
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Why was flash image over exposed?

 
elguapo
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Sep 02, 2011 22:32 |  #1

I was practacing some off camera flash work and was shooting after dusk. My ambient light reading was something like 1/60, f/1.0, ISO 4000. with a canon 580 ex in manual mode at 1/128 power, my light reading was something like 1/60, f/4.5, ISO 4000. However, my image was over exposed. I dropped the ISO on my camera down to 1600, then the image was properly exposed.

I was using a Sekonic L-308S as a light meter (and now understand why a backlit LCD screen is important, which that model lacks) that is usually right on. Why would my image be so over exposed?


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suecassidy
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Sep 02, 2011 22:37 |  #2

I might be misunderstanding, but your meter told you to use 1/60, 4.5 at iso 4000, but you chose to open up to 1.0 (your ambient) anyway? That would do it, or am I misunderstanding?


Sue Cassidy
GEAR: Canon 1ds, Canon 1d Mark iii, Sony RX 100, Canon 50mmL 1.2, Canon 70-200L 2.8 IS, Canon 100-400L IS, Canon 14mm L, 2.8, . Lighting: Elinchrom Rangers, D-lite 400s, Canon 580/550 flashes. 74 ' Octabank, 27' Rotalux. Editing: Aperture 3

  
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suecassidy
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Sep 02, 2011 22:39 |  #3

Wait, I get it. You wanted the ambient to be what it was, and the flash to "fill". You can't go any lower than 1/128th power, so the flash must have been too close?


Sue Cassidy
GEAR: Canon 1ds, Canon 1d Mark iii, Sony RX 100, Canon 50mmL 1.2, Canon 70-200L 2.8 IS, Canon 100-400L IS, Canon 14mm L, 2.8, . Lighting: Elinchrom Rangers, D-lite 400s, Canon 580/550 flashes. 74 ' Octabank, 27' Rotalux. Editing: Aperture 3

  
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Curtis ­ N
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Sep 03, 2011 06:19 |  #4

Your question is short on information. Post the image and tell us your camera settings.


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Why was flash image over exposed?
FORUMS General Gear Talk Flash and Studio Lighting 
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x 1600
y 1600

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