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SC-S9 & SB-800 - Flash not firing at full power


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Agent360 Registered since 13th Aug 2006
Thu 12-Apr-07 08:01 PM


I have two D70s cameras and one sb-800 flash and the SC-29 off shoot cord. All bought brand new.

My set up:
D70s, 18-70mm lens, turbo compact battery, stroboframe, sc-29 cord. Rig is assembled correctly. All cords are connected correctly and securly.

My problem:
The sb-800 WILL NOT fire correctly with the SC-29 cord attatched. I have tested and tested. Initially I thought I had a leaky capacitor in the sb-800. Reterned it. Got a new one. Same problem. No matter what setting...auto or manual or otherwise the flash will not fire with enough power to properly expose the subject. I simply get a very dark under exposed image. Hook the sb-800 directly to the camera hot shoe and it works perfectly. Use the cord and no worky.
Test the same set up with my second camera and I have the same problem. I borrowed another sc-29 cord from a friend and the same dam thing happens. I also tested without using the turbo. Same thing happens. And I have tried all of the above with 3 different lenses ( nikon and sigma). Still no worky if the cord is attached.

The sb-800 is working correcly when attached to the camera hot shoe. Rules out the sb-800 as the problem.
Test with another known working sc-29 cord and same problem occures.
Test on my second camera and same thing happens. Rules out the camera being defective.

What in the heck is going on???????????

I am not having any focus problems.

I set the flash to manual 1/1 (full power) and the camera to manual and auto trying to force a full manual situation just to see if I can shoot an over exposed image with the flash. Camera shoots, Flash fires and the exposure is black in auto. Go to manual set a correct shutter/aperture for proper exposure with ambient light and flash to manual at full power.....no worky. It seems the flash is only firing a pre flash.

I push the test fire button on the flash and it fires at full output.

I have brand new batteries in the flash unit and fully charged turbo.

I can only conclude that there is some mysterious setting on the camera that I need to set. Except that I have been shooting with my camera for 3 years and know every freaken setting and how it works. Read every single page in the manual. Shot in every type of lighting. I can do amazning things "without" a flash.

I am so frustrated. I am now doing portraits and I can't do this without the flash.

Any help is very very much appreciated.