SEA&SEA YS-01 Strobe Package

Sea & Sea YS01 Strobe Package
Package includes:
Sea & Sea YS01 Strobe
Sea & Sea Strobe Mask Set #50109
Sea & Sea Fiber Optic Cable (L-type) #50107
Sea & Sea Arm 7 Compact #22124

From compact digital cameras to digital SLR cameras. 
A small DS-TTL and manual strobe with built-in target light

Included Accessories:
Fixing bolt
Diffuser

Relevant information:
Basic underwater strobe photography with the YS-01 and the YS-02

Promotional movie showing features of the YS-01 strobe with image samples taken with the strobe

Features:
Multiple features condensed into a compact design
Circular beam angle of 100°x100° and guide number of up to 20. The YS-01 is a new compact-type slave strobe that can be used for all applications from wide-angle to macro photography.

You can switch between DS-TTL (Digital Slave TTL) and a ten-level manual control function, to enable fine adjustment of the light level according to the photographer's intentions. You can also set up a lighting system that uses two strobes in DS-TTL mode. Power comes from four AA batteries for a powerful and long-lasting strobe. You can enjoy taking pictures all day long without having to recharge the batteries. The recycle time takes about two seconds with nickel-metal hydride batteries (2700 mAh) for stress-free continuous shooting. The YS-01 is furnished with a high-luminance white LED target light (1W) indicating the optical axis of the strobe attached to its front face that is effective for night diving.

You can fully exercise your creativity with the YS-01, which can be used as a primary strobe or secondary strobe in a wide range of applications, from compact digital cameras to digital SLR cameras.

Specifications:
Guide Number (ISO 100/m) (land): 20
Beam Angle: 100°x 100° (with diffuser 110°x110°)
Batteries: 4xAA A: 6V Ni-MH: 4.8V
Number of Flashes*1: A: 230 Ni-MH: 330
Recycle time (full)*2: A: 2.5 sec. Ni-MH: 1.9 sec.
Colour temperature: 5600K
Colour temperature w/diffuser: 5250K
Depth rating: 75m / 250ft
Dimensions: Width 68mm x Height 108mm x Depth 129mm / 2.7 x 4.3 x 5.2inch
Weight: 505g / 17.7oz
Underwater weight: -10g / -0.4oz
Others:
- Exposure control: DS-TTL, Light level control dial (GN): 1 / 1.4 / 2 / 2.8 / 4 / 5.6 / 8 / 11 / 16 / 20 (10 steps)
- Pre-flash control: Equipped with pre-flash cancel mode
- DS-TTL function
- Slave function
- Auto power OFF function
- Accepts: 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 2700mAh batteries.

Accessories:
Diffuser for YS-01/02 (standard accessory)