black patches


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johndzite

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Jun 15, 2008
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#1
I suspect this is the curtain of the shuttle speed problem.

I decided to try taking photos with External Flash today. I attached it to my camera and starts taking some photos. The photos look ok at 1/200 suttle speed just quite overexposed. The problem starts here.

1/400 - a quarter of the photo got this big black patch like this. Note that this is not the real photo. This is just an example what it looks like.



1/800 - the patch is even bigger.



1/1000 - oh god... WORSE.



It seems that everything is perfect at 1/200. Does anybody know why this happen and how to fix it?
 

ortega

Moderator
Staff member
Nov 2, 2004
23,694
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#3
which camera and which external flash

looks like the shutter curtain and your camera cannot shoot flash pictures faster than 1/200s

some camera/flash combination can do it

eg. the Nikon D70 and go 1/500s

but with SB800 and technology can go even faster (i forgot what the technology is called)
 

johndzite

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Jun 15, 2008
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#4
I am using a Nikon D80. About the flash I am not quite sure but I know it is a Canon one from the school. I can't remember the model. The External Flash is not that good plus, the battery die very fast and it takes quite long to charge before the next shot.
 

Mar 13, 2007
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Atlanta, GA
#5
if you've enabled FP in your D80, most prob is that the flash's unable to sync.

but in a scenario w/o flash, this doesnt happen right? if it doesnt, probably your shutter is ok
 

johndzite

New Member
Jun 15, 2008
37
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#6
yes yes. That's right! When I do it without external flash, it is ok.
 

johndzite

New Member
Jun 15, 2008
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#7
So what must i do to set it to normal?
 

johndzite

New Member
Jun 15, 2008
37
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#10
nvm. it's settled already. I just set FP Auto on. Thanks guys.
 

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