he YS-D1 sets a new standard for underwater strobes. From subtle light output as low as guide number 1 to a maximum power of guide number 32, control of underwater lighting has become effortless with the YS-D1.

[Accessories]
Fixing bolt
Diffuser100
Diffuser120
Ball Mount Strobe Adaptor

[Guide Number]
(ISO 100/m) (land) : 32
(with Diffuser 100 attached) 24
(with Diffuser 120 attached) 20

[Beam Angle]
80°x80° (without diffuser)
100°x100° (diffuser 100)
120° x 120° (diffuser 120)

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

[Number of Flashes] *1
AA: 150
Ni-MH: 200

[Recycle time (full)] *2
AA: 2.8 sec.
Ni-MH: 1.9 sec.

[Color temperature]
5600K
(w/diffuser) : 5250K

[Depth rating]
100m / 330ft

[Dimensions (WxHxD)] （Excluding protruding part(s) and the arm holder）
87 x 135 x 111mm

[Weight]
650g (w/o batteries)
* Attached a YS Mount Strobe Adaptor and a fixing bolt to the Strobe.

[Underwater weight]
0.5g / 0.02oz(w/ batteries)

[Others]
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 / 32 (11 steps)
Pre-flash control: Equipped with pre-flash cancel mode
DS-TTL II function
Slave function
Auto power OFF function
Sync cord: 5-pin Sync cord/N
Fiber-Optic Cable (L-type)
Over-pressure relief valve
LED target light

*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 2400 mAh batteries.

Tillverkare: Sea and Sea
Tillverkarens produktsida