[Accessories] Fixing bolt, Diffuser100, Diffuser120, Ball Mount Strobe Adaptor
*When the YS-D1 is used with a camera with built-in flash in housing, use the Fiber-Optic Cable.
* When the YS-D1 is used with a non-SEA&SEA housing, a Strobe Mask Set may be required along with the Fiber-Optic Cable.
* Use of genuine SEA&SEA Fiber-Optic Cables is recommended. SEA&SEA strobes may not function properly if a third-party Fiber-Optic Cables are used (functions such as TTL auto exposure in particular).
Do not use non-recommended batteries (such as lithium primary batteries). Use of non-recommended batteries may cause battery leakage and overheating and may cause the strobe to rupture, which could result in personal injury.
Taken by Ms. Tamaki Ozaki / SEA&SEA. (Shooting location: Papua New Guinea : Tawali / Special thanks :PNG -Japan Ltd.)
*Click “YouTube” to link there.
Equipped with SEA&SEA’s new slave TTL system called “DS-TTL ll”
The YS-D1 is the most versatile underwater strobe available today. The DS-TTL exposure compensation function enables subtle lighting control by adjusting the Light Level dial in DS-TTL mode.
Powered by only four AA batteries, the YS-D1 offers a maximum light output of Guide Number 32
The YS-D1 is the world’s first slave TTL strobe equipped with an exposure compensation (EV) control function
A high-visibility three-colored LED indicator lamp is easy to read even during shooting
A red LED will be shown when the strobe has been charged and is ready to fire.
TTL confirmation lamp
A green LED will be shown for two seconds to confirm DS-TTLll exposure.
Slave TTL mode lamp
A blue LED will be shown when the strobe is set to Slave TTL mode and the strobe has been charged and is ready to fire.
Two accessory diffusers
Diffuser100 for YS-D1/D2 (Standard accessory)
Diffuser120 for YS-D1/D2 (Standard accessory)
The YS-D1 is equipped with a function that automatically switches modes between slave and conventional sync cord or vice versa
Strobe mount can be selected
[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] : A: 150 Ni-MH: 200
[Recycle time (full)] : A: 2.8 sec. Ni-MH: 1.9 sec.
[Color temperature] : 5600K
[Color temperature w/diffuser] : 5250K
[Depth rating] : 100m / 330ft
[Dimensions (WxHxD)] （Excluding protruding part(s) and the arm holder.）: 87x135x111mm / 3.5 x 5.4 x 4.4 inches
[Weight] : 610g / 21.5oz (w/o batteries) * Attached a YS Mount
Strobe Adaptor and a fixing bolt to the Strobe.
[Underwater weight] : Approx.+0.5g / 0.02oz(w/ batteries)
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
Auto power OFF function
Sync cord: 5-pin Sync cord/N, Fiber-Optic Cable
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.