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Strobes not firing underwater

Started Oct 11, 2021 | Questions thread
kelpdiver Veteran Member • Posts: 5,564
Re: Strobes not firing underwater

PHXAZCRAIG wrote:

It sounds like the Isotta trigger is a TTL trigger if it uses preflash.

this is more about the camera than the flash trigger.

I have UWT ttl trigger and I've seen inconsistent behavior where I spent the first 3 DAYS using green mode and then on a night dive got a sequence of black photos, where the strobe did fire, until I moved it to orange.   I suspect it's UWT, but at the end, I just want to strobe to fire at the right time and I seem to have that now.    (I'm still dabbling with the TTL mode)

The UWT has been fine with both the D2J and the D3s, both of which seem to have the rep for low thresholds.  I suspect it is the path of least resistance.    On the simpler nauticam trigger for the GH4, I got it to play by using one newer multicore and then slaving it to the other.

There's a lot of DIY opportunity here to use larger fiber and for much cheaper.   A lot of discussions at wetpixel.    Others just say move to Inon, but the continuous fire capability of the D3 was too attractive.

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