YS-90TTL Duo Strobe
Product # S16900

The YS-90Duo is a great primary strobe and it's cordless TTL function makes it the perfect secondary strobe. Loaded with Sea & Sea's technology and quality the YS-90Duo is one of the most versatile underwater flash units available.

• The changeable sync cord allows the YS-90Duo to be used with most underwater photographic systems.

• The YS-90Duo can be used for all applications including wide-angle and macro photography.

• Includes the Sea & Sea prismatic diffuser in front of the flash tube to create even higher intensity light in an even oval pattern.

• Color temperature is close to that of the sun (5,400°K) and provides a natural color tone for photography even in dark water.

• The YS-90Duo's built-in Duo circuit responds to N-type (used in MMIII) and S-type TTL circuits, both used in Sea & Sea housings.

• TTL slave function enables cordless dual TTL photography, requiring only the primary strobe to be connected to the camera or housing.

• It has 2-step (1/2 and full) light level control.

• Use of the accessory diffuser softens the light and helps reduce backscatter. The accessory diffuser reduces the light output by one f-stop, combined with the power control to give 4 stops of control.

• 1700mA Ni-MH batteries will provide 260 full flashes over their lives at a recycle time of 3 seconds. It recycles almost immediately after a TTL flash, so you won't miss the chance to capture that next great image

• Includes: 4 X AA alkaline batteries, arm fixing bolt, silicone grease, O-ring, diffuser, TTL operating range and manual exposure decals