sb800 - second curtain sync?

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adam*

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Using a D700 anyone know how to set second curtain sync? Couldn't work it out during a shoot earlier!

Adam
 
No worries, found it. Guess it's 'rear' on the flash button. SO annoyed I couldn't work it out during the shoot, had an awesome shot ready.
 
alternatively, press and hold the flash mode button (up by the flash release button) and twiddle the aperture wheel and you can cycle through different flash modes, as displayed on the top rh corner of the camera LCD :)
 
cowasaki said:
What would you use it for?
Click to expand...

Use it for slow-sync flash, when shooting a moving subject with a long exposure and the direction of movement is important.

Normal flash (first/front curtain sync) - press shutter release, first shutter curtain opens, flash fires, subject moves creating an ambient light trail in front of the flash image, second curtain closes.

Second/rear curtain sync - press shutter release, first shutter curtain opens, subject moves creating an ambient light trail, flash fires and records an image at the end of the movement trail, second curtain closes.

If the direction of movement is important, it looks natural if the blur appears to run behind the direction of movement rather than in front of it.

Example here http://www.shortcourses.com/use/using6-2.html
 
Example: I wanted to do a long exposure of someone white water rafting at night, blurring the water but keeping a still flashed rafter in focus. Would only be possible using second curtain sync.
 
adam* said:
Example: I wanted to do a long exposure of someone white water rafting at night, blurring the water but keeping a still flashed rafter in focus. Would only be possible using second curtain sync.
Click to expand...

Nice idea for a hypothetical shot.

I started off thinking it's quite simple and you'd want front curtain or manual so that the raft is guaranteed to be in the right place but then it struck me they'd probably be wearing head-torches or similar.

Continuing the example, what length exposure are you thinking and how are triggering the flash. For instance, does rear curtain work on bulb mode triggered by CLS?

Interesting one... glad you found the setting you wanted.
 
Yeah well I couldn't find the button whilst I was there, devastated!
 
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