This Sea & Sea YS TTL Converter allows TTL exposure control when connected to current Sea & Sea housings for Nikon digital SLR cameras. The converter is compatible with all current Sea & Sea YS strobes including the YS-250Pro. The converter allows quick switching underwater between TTL mode and manual mode from outside the camera.
You can use the TTL correction dial after checking the results of a shot in the LCD monitor to adjust the amount of strobe light for the next shot. Because the converter comes with two top mounted strobe connectors, you can use advanced automatic TTL flash adjustment with two strobes. You can even use two different YS strobe models.