I have for sale, with very little use, the following equipment:
1 x HeinrichsWeikamp External Converter for Nikon iTTL ........................ Eur 250,00
That equipment allows you to change underwater the use of flashes in iTTL system or manual via a magnet that is included.
Like new, with bag, USB cable for charging and manual.
Contact: Rogerio Silva Email: rogeriopjsilva@hotmail.com or ++351.932319107
Still avalable.
With this device you can work underwater in manual or iTTL mode in both strobes.
1 strobe connected to the camera by this converter and the other strobe in regular cable.
Select the strobe connected by the converter in iTTL mode and the other in slave mode and you work in iTTL.
Underwater you can easily change to manual (and vice-versa) if you want, only put the magnet in converter on position and the flashes in manual mode.