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Old Oct 8, 2002, 7:49 PM   #1
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Default 5700 and external flash

I have 2 questions concerning use of an
external flash (SB-28) with the 5700:
(1) How can one block the light from the
built-in flash when using an external flash?
I was shooting a painting mounted behind
glass. I had the SB-28 to bounce light off of
the ceiling. But the built-in flash shoots
directly forward, creating a bad reflection.
Any way to block the built-in flash without
blocking the "TTL" sensor built into the
flash mount?
(2) When using the SB-28 off camera,
connected with the 5700 with the SC-17 remote
cord, the cord, where it connects to the
camera end of the SC-17, prevents the built-in
flash from fully opening. This likely results
the "TTL" sensor not accurately seeing the
subject. Any ideas about moving the SC-17
higher off of the camera?
Thanks,
Steve Taub
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Old Oct 15, 2002, 1:26 AM   #2
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Default

the SB50-DX has a diffuser that blocks (diffuses) the light from the built-in speedlight but does not block the photocell.

you can also set the Speedlight Options to Speedlight Control: Auto so only your (external) SB28 will fire. Setting to Int & Ext Active will cause both the built-in speedlight and your external speedlight to fire simultaneously.

hope this helps.
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Old Oct 15, 2002, 8:08 AM   #3
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Default

Thanks for your helpful reply. I'm still left with my question
about the SC-17 cable interfering with the pop-up flash.
Someone (a customer) at a reputable pro-camera store around here said that Nikon had "issued a bulletin" indicating that the SC-17 cord was not recommended for use with the 5700 and the off-camera flash was not supported on that camera. Anyone know anything about this?

Thanks,
Steve T.
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Old Oct 15, 2002, 12:24 PM   #4
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Default I can't recall where I saw this...

I think the solution with the SB-50 is to set it as a wireless slave and use the onboard speedlight as the master. Now with the SB28/28DX - I think you'd need to get the wireless slave shoe to mount on the Speedlight. The 8-page Acrobat brochure indicates that you need the SC17 only for the SB29/27/23 series.
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Old Oct 16, 2002, 10:21 PM   #5
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I use a Vivitar 285 external flash along with a Wein Safe-Sync hot shoe device to accept the PC cord from the 285, as the 5700 has no PC cord connector. Then I drape a small piece of old wash cloth over the internal flash. Not very elegant, but it does eliminate the internal flash illumination.

Bill
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Old Oct 16, 2002, 10:36 PM   #6
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Default Infrared to slaves

I use the "small piece of film taped over the flash" trick. The leader from developed film has an inch or two of dark film typically- just tape a small piece in place, taking care not to cover the sensor. The light is 95% attenuated but the IR makes it through and fires the slaves nicely. This way the internal flash doesn't add to the exposure.

Tim
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