I had tested the D2X previously with the original converter and the D2X would do a full dump with no preflsahes, no TTL. I just tested D2X with the converter II and had the same results. Strobe used was a YS-90DX.
In testing the Inon strobes with the Sea and Sea converter and D200, I was getting preflashes and
the compensation dial was stepping the exposure up and down accordingly, but the exposure was overexposed when the converter was set to zero. This test was conducted in our photo booth where we do our product shots for the website. (The boss won't let me go out and dive all day! )The Z240 in identical controlled conditions as the YS-90 had a brighter exposure than the YS-90. I know others have posted on this site that they are getting good results with the Z240 and the Sea and Sea TTL converter, but I want to share my results when comparing 2 different strobes in identical shooting conditions.
I've been shooting with a D200 with YS-90 strobes and the converter in both Sea and Sea and Subal housings with the 105VR for macro and the TTL has been spot on. However, I still prefer manual for wide angle.
Hope this helps sort out the TTL confusion.
I already have two Z240. I'm wondering if I should be getting the converter II. If the Z240 is consistently overexposing, i should be able to compensate with the dials right? So you think it's worth getting the converter?