Question about Nikon Speedlight SB-800 TTL Flash
SB800 REVERSE MOUNTED IN SMALL SOFTBOX USED FOR OUTDOOR PORTRAITS. 6 D300'S WITH 6 SB800/SOFTBOXES. APERTURE PREFERED, TTL, FIRED BY SU800'S, METER MODE CENTER WEIGHTED, HIGH SPEED SYNC, SPORATIC MAJOR OVER FLASH OR MAJOR UNDER FLASH EVEN ON ONE OUT OF SEVERAL SAME POSE EXPOSURES. TESTS WILL FUNCTION PERFECTLY BUT SPORATIC FAILURE IN SHOOTS. 55 YEARS STUDIO EXPERIENCE BUT STUMPED. WHG@GENTRY PHOTOGRAPHY.COM
I have to suspect that there is something interfering with the triggering of your IR light. A Cell Phone or Walk About phone, something. Since you have over and under flash it is also an unstable chip inside either the camera or U800 transmitter.
As Sherlock Holmes would put it, all other things are discounted what ever is left no matter how improbable has to be the answer.
Posted on Jul 25, 2008
One of the major strengths for the D300 and other current Nikon DSLRs isiTTL, which is only compatible with Nikon SB flashes that have a 3-digit modelnumber. You lose that big advantage with a Vivitar flash. Between the SB-800and 600, the 800 has more power as well as many other additional features. The800 can serve as the master in an iTTL/CLS setting, it can accept an externalhigh-voltage power source for much faster recycle time, it can take an optional5th battery and it comes standard with a bounce card and diffuser dome. Boththe SB-800 and 600 can be remote slaves controlled by the pop-up flash on yourD300. The SB-600 is ok if you don't use much flash photography, but the SB-800is a better choice and is priced accordingly.You want the SB-800. If for noother reason, the presence of a PC synch port and the simple optical slaving sothat you can integrate it with other stuff later. The provided diffuser, gells,better zoom compatibility, extra power, and ability to control other strobes...all nice, too.
SB 800 Flash Problems - Photo.net NikonForum
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Posted on Jul 25, 2008
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Posted on Jan 02, 2017
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