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Strobes not firing underwater

Started Oct 11, 2021 | Questions thread
OP SilvyG New Member • Posts: 13
Re: This may explain it

PHXAZCRAIG wrote:

Which of these triggers did you get, the manual one or the TTL one?

https://www.backscatter.com/brand/Isotta/department/Lighting/product-category/Flash-Triggers

I think you have a TTL flash trigger, and to do TTL it must use preflash.

Now you just need to see how to run it in manual mode when you want to. Eventually you'll find situations where TTL doesn't do what you want. When I was shooting TTL (pop-up flash on D810), I had more issues with overexposure and highlight loss than I do using manual flash exposure. I found that out when forced to do manual flash with my D850 Nauticam trigger.

What I asked to have installed is the manual trigger Maybe they installed the TTL by mistake? Wonder if I can tell them apart somehow...
https://www.backscatter.com/Isotta-Optical-Flash-Trigger-for-Isotta-DSLR-Housings

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