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p.1 #1 · p.1 #1 · Flash Question: Trouble with off-camera Nikon SB-700 high speed sync | |
Hello,
I'm having trouble getting proper fill flash exposure when using the a sb-700 off-camera. I'm using a Nikon D810. When it goes off it buzzes/flashes weakly for an extended period of time (~1 sec) but never actually adequately lights the subject regardless of camera settings or distance between flash and subject. Sometimes it works properly at shutter speeds between 1/250 to 1/1000 but most of the time it does not. Auto FP mode 1/250 is set to ON in the camera and the built in flash on the D810 is set to commander mode with the built in flash set to -- setting. Both camera and lens are set to the same group and channel setting. That nikon black flippy plastic thing is used to stop the built in flash from contributing to the subject exposure. When I change the flash output but keep the other settings the same the lighting on the subject does not change.
I've been trying different tests to figure out what may be causing it. I put fresh batteries in the flash, and I've tried different flash output settings, shutter speed settings(with ISO adjusted to keep same overall exposure), and it still doesn't work properly most of the time. If I mount the sb700 on the shoe mount it works fine however.
Below are two examples with the same exact settings and approximate flash positioning:
first one is on camera - https://www.flickr.com/gp/lazybornpet/ML896g
second one is off camera - https://www.flickr.com/gp/lazybornpet/b6443L
Exif info should be visible, not the best examples but in the first photo, auto fp worked as expected; in the second example, it flashed in the manner described above and contributed no light to the final photo. There is no ambient light with the settings used just flash.
If anyone has any input or could help resolve this it would be greatly appreciated!
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