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Old Jan 16, 2012, 8:49 AM   #1
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Ok, so I have the common Nikon D50 flash exposure problem. It's a nice camera but my flash doesn't work properly. Basically the onboard flash will fire but it will come out underexposed because the flash controller has a problem (as many other users have said).
External flash works fine though, I tried an SB-600 and my Sigma EF-500DG and it seems to work okay in TTL mode (even forced it to use the on-body AF illuminator instead of the flash one).
Basically I just want a compact little flash, so I'm in the market for an SB-400. But... the SB-400 doesn't have an AF-illuminator... how does it get the data to control the flash?
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Old Jan 16, 2012, 11:11 AM   #2
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The AF illuminator has nothing to do with flash exposure, it is only for the auto-focus to have enough light to work properly.

The flash exposure in TTL mode is determined by a weak flash just before the main flash and is called the pre-flash. You actually have two flashes when ever you shoot flash. Check your user manual to see how to apply flash compensation. You should be able to apply up to +1EV to -3EV. This should help with the under-exposure.
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Old Jan 16, 2012, 10:59 PM   #3
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I've tried changing the exposure settings and also the flash compensation. I even did a full reset like what Nikon told me to do. Doesn't change anything whatsoever.
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