The Remote Slave Unit RSU is a very sensitive microprocessor controlled photosensor that triggers underwater strobes over large distances. No TTL function is build in the RSU as in the Digital Adapter
Jam packed in this issue you'll find: Guadalupe Photography Workshop with Charles Hood,
Wild Photos 2007,
Antibes Film Festival,
Asian Diverus Ocean Odyssey Digital Shoot Out,
DivePhotoGuide...