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Old November 22nd 06, 02:17 AM posted to
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Posts: 3,185
Default Does the Canon 5D has Rear Sync Flash?

I just got a 5D and, so far, I love the camera, but I can't get the
flash to fire before the shutter closes. I did set the Custom function
#15 to "2nd Curtain sync", but it doesn't do the trick. Thinking it
could be a problem with the flash, I asked my friend to try it on his
Nikon D200 and it works fine. What am I doing wrong?

What flash are you using?
On my 580EX, you can easily put it into second curtain synch by pressing a
dedicated button on the flash unit...which toggles through high-speed
synch/second curtain/normal.

NOTE: If you set custom function 14 to second curtain, but leave the flash
unit itself on normal (1st curtain), the flash will OVER-RIDE the custom

The other possibility is that you're being fooled by the E-TTL
pre-flash...which will still fire slightly BEFORE exposure...even during
second curtain synch...followed by the exposure, and actual flash before the
shutter closes.


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