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Member Since 20 Jan 2004
Online Last Active Today, 12:45 PM

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In Topic: Fibre optics and TTL

21 April 2017 - 05:07 AM

Officially, Subtronics are not in list of compatible strobes yet, only planned for future. For those strobes must be build separate TTL curves in TTL Converter firmware.

At last Dusseldorf Boat Show, using a case, I tried V2 board with Subtronic 160 /270 strobes (by wires), just for interest, - yes TTL worked, but it required some corrections. 

Hi Pavel, thanks for the headup!

Some corrections, can you elaborate a bit?

Another question: I read (I guess it was from you) that with this it is also possible to change underwater from TTL to manual and then even change the power of the strobes by turning the aperture/shutter wheel on the camera? Is this really true and can you elaborate on this as well?

Will be deeply appreciated...


In Topic: Fibre optics and TTL

21 April 2017 - 12:42 AM

Yes, i tested that V2 board (white color PCB).  It has very nice TTL accuracy. And the 100% power of underwater strobe is available for TTL control by that board, another words it has full-size TTL (!).

Certainly, full-size TTL is available only for fully controllable strobes.


Tested strobes: YS-250, DS-161, YS-D1, YS-D2, Z-240. The board has a switch for those strobe types.

There are 2 pcs Optical TTL outputs and 2 pcs Wire TTL outputs onboard. Also, there is 1pc wire TTL connector for Nikon land strobe, because Subal also produces housings for SB-910/ SB-900.


New V2 board supports +/- TTL Flash Exposure Compensation (by camera wheel), TTL/M modes switching underwater,  Manual flash power setting by camera wheel (in M mode). These features already became a good tradition for modern TTL products. The same features exist in Nauticam #26308 board, UWTechnics #11031 board and External #13038 converter, Aquatica TTL board, Hugyfot TTL board. 


Does anybody know if this Subal V2 also work with the latest Subtronic flash (Pro160 / Pro160 Fusion)?

Asked Subal directly some time ago, they wanted to test this but never got an answer on it though...