Strange "warning" sound from Nikon SB-910

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fsgeek New Member • Posts: 13
Strange "warning" sound from Nikon SB-910

Hi everyone,

Recently, I've been getting a strange two-tone sound coming from my Nikon SB-910s when firing in remote mode with my D850 (using SU-800 as the trigger). Let me cut to the chase:

I have serached all over the internet and the user manual, and I can't find any information about this sound.

It appears to be intermittent and I can't figure out what causes the sound. When it happens, the affected flash seems to put out the minimum power resulting in a failed exposure.

I'm thinking it's either a fault, or the flash isn't receiving it's trigger signal properly. I'd be surprised if it's a fault since the issue affects both of my SN-910s (sometimes one or the other, other times both simultaneously!)

Has anyone here every encountered this sound? If so, any pearls of wisdom you could share?


Louis Vallance

Note: In the video I'm using an SB-910 as the trigger. I've found that I can get the warning tone with this set-up, as well as shen using both SB-910s as slaves and the SU-800 as the trigger.

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Nikon D850
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