black patches

[johndzite]

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?

 

[Galdor]

Seems like a shutter problem. Care to share which cam are you using?

 

[ortega]

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]

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.

 

[psychobiologist]

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]

yes yes. That's right! When I do it without external flash, it is ok.

 

[johndzite]

So what must i do to set it to normal?

 

[ortega]

change flash or use the built in flash or set shutter speed to or less than 1/200s

 

[blazer_workz]

So what must i do to set it to normal?

Change to a Nikon speedlite to be able to use Auto FP so u can sync at speed higher than 1/250..but i'm not sure whether D80 got the Auto FP feature a not..:think:

 

[johndzite]

nvm. it's settled already. I just set FP Auto on. Thanks guys.