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Strobe YSD3 Lightnin …

Strobe YSD3 Lightnin …


Newly designed circuitry and light-emitting unit produces powerful guide number of 33. In addition, a high precision aspherical optical troidal lens has been fitted over the two flash tubes to disperse an even light from the center to the edge. The strobe`s beam angle will increase to 110°by attaching the standard accessories Diffuser. When the optional Dome diffuser is attached, beam angle will increase to as wide as 150(TBD)

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Strobe YSD3 Lightning

Sea & Sea has announced the new YS-D3 Strobe in DEMA 2019. It offers lots of great improvements from it predecessor, YS-D2J, which lots of underwater photographers are ecstatic about. With the improvements on the circuitry the strobe can now produce a powerful Guide Number 33. Recycle time has also been improved which can fire again in 0.6sec even at Guide Number 22.


Maximum Guide Number 33

Newly developed aspherical troidal lens on the flash tubes provides even light dispersion, no hotspots are produced

Wide beam angle of 120° or can even wider (150°) with the optional diffuser

Large capacity condensers

Firing the strobes at Guide Number 16 the strobe can continuously fire without any interval time

Two-stage signal – Visual and Audible notification that the strobe is ready to fire 

Has a pre flash cancel mode

Improved power of target light which can be used as a dive light also. It is also adjustable in 2 steps

Auto power off when the strobe is left turned on for a long time

Over pressure relieve valve



Slave TTL

Manual Mode


[Guide Number (ISO 100/m) (land)] : 33, 28 (with Diffuser attached)

[Beam Angle] : 80°x105°  (without Diffuser), 100°x110°(with Diffuser)

[Batteries] : 4xAA A: 6V Ni-MH: 4.8V

[Number of Flashes *1] : A: 140 Ni-MH: 220

[Recycle time (full) *2] : A: 3.5 sec. Ni-MH: 1.7 sec.

[Color temperature] : 5800K

[Color temperature w/diffuser] : 5500K

[Depth rating] : 100m  / 330ft

[Dimensions (WxHxD)] : 92x111x147mm / 3.6 x 4.4 x 5.8 inches (excluding ball base) 

[Weight] : 610g / 21.5oz (w/o batteries) (excluding ball base)

[Underwater weight] :  Approx.-20g / -0.7oz (incl. batteries ball base)


Exposure control: DS-TTL II,  Slave TTL, Light level control dial (GN): 1 / 1.4 / 2 / 2.8 /4 / 5.6 /8 / 11 / 16 / 22 / 33 (11 steps)


DS-TTL II function

Slave function

Auto power OFF function 30min

Sync cord: 5-pin Sync cord/N, Fiber-Optic Cable

Over-pressure relief valve

LED target light (output is adjustable in 2 steps)

Audible charge signal


*1 Number of flashes and recycle time depends on the battery brand, temperature and frequency of use.

*2 Number of flashes and recycle time of Ni-MH batteries were tested on 2500 mAh batteries.



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