Sea & Sea YS-D2J Underwater DS-TTL Strobe

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Sea & Sea YS-D2J DS-TTL Underwater Photography Strobe

Now Made In Japan for Higher Quality! Ball Mount Included!

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Sea & Sea YS-D2J DS-TTL Underwater Photography Strobe - SS-03121

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The Sea & Sea YS-D2J strobe is setting new standards for features and power in a very versatile underwater strobe. Auto-DTTL is available using fiber optic sync with most cameras and housings. The auto DS-TTL exposure compensation function allows subtle lighting control by adjusting the Light Level dial in DS-TTL mode. Powered by four AA batteries, in a redesigned battery compartment, the YS-D2J offers a maximum light output of guide number 32. Keeping with the same great performance specs as the YS-D1, the YS-D2J has added an audible tone providing TTL and ready light confirmation. The YS-D2J also features a faster recycling time, and a rear glowing colored panel with easy-to-adjust controls.

Electrical sync is also provided with manual control only.

Two accessory diffusers (included)

When a wide beam is not necessary, the YS-D2 has a guide number of 32 with an 80x80 beam angle. For an even stronger circular 100x100 light output at a guide number of 24, mount the Diffuser 100. When a wide-angle lens is used, the diffuser 120 can be attached with a guide number of 22. These three beam angles can be selected in accordance with the photographer’s requirements.

EV Compensation Control Function

The YS-D2 is the world’s first slave TTL strobe equipped with an exposure compensation (EV) control function
By controlling the actual flash light level, the strobe realizes accurate exposure compensation with EV value.

New Features:

  • Audible confirmation
  • Dual powered target light with red filters
  • New control knobs
  • Newly designed battery compartment


  • Diffuser-100 and 120
  • Diffuser strap (x2)
  • Ball Mount Strobe Adapter
  • Newly designed fixing bolt
  • M4 Hexagon Wrench
  • Red Filter (x2)

*YS mount not included

Guide Number:
Strobe Beam Angle:
80° / 100°, 120° w/ Diffusers
AA x 4
Flashes at Full Power:
150 (Alkaline) - 200 (NiMH)
Recycle Time:
1.5 (NiMH) - 3 sec (Alkaline)
Color Temp:
Color Temp with Diffuser:
Depth Rating:
100m / 330ft
87 x 135 x 111mm / 3.4 x 5.3 x 4.4in
Buoyancy :
+40g / +1.4oz
Manual and TTL Capabilities:
TTL Auto / Manual
Sync Cord Compatibility:
Focus Light:
Mounts Included:
Ball Mount


  • Controls: Mode, Target Light, Light Level
  • Indicator: Ready/TTL Lamp
  • Guide Number: 32
  • Beam Angle: 80°x80°, 100°x100° (w/ Diffuser 100), 120°x120° (w/ diffuser)

    • Color Temp.: 5600K
    • Battery Life: Alkaline (approx. 150 flashes)
    Ni-MH (approx. 200 flashes)
    • Recycle Time: Alkaline (approx. 3.0 sec)
    Ni-MH (approx. 1.5 sec)
    • Battery Type: AA (x4) - Alkaline / Ni-MH
    • Depth Rating: 100m / 330ft
    • Dim. (WxHxD): 89 x 133 x 116 mm
    3.5 x 5.2 x 4.6 inches
    • Weight: Approx. 623 g / 22.0 oz (w/out batteries)
    Weight UW: Approx. +40 g / 1.82 oz (w/ batteries)
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