Included Accessories: Fixing bolt, Diffuser100, Diffuser120, Ball Mount Strobe Adaptor.
The 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.
COMPACT BUT POWERFUL....
Compared to the YS-110Alpha, the YS-D1 is 1EV more powerful, 50g lighter and 10% smaller. The YS-D1 is robust enough for wide-angle photography and is ideal for macro photography which requires delicate light level control.
Power/Angle of Coverage:
The YS-D1 is supplied with two diffusers; 120 and 100. These are used individually to widen the angle of coverage and reduce the power output of the strobe.
GN20 - 120o (with 120 Diffuser)
GN24 - 100o (with 100 Diffuser)
GN32 - 80o (without diffuser)
[Guide Number (ISO 100/m) (Land)]
Three beam angles can be selected in accordance with the photographer’s requirements. In macro photography when a wide beam is not necessary, no diffuser should be attached. For an even strong circular 100x100 light output is desired, mount the Diffuser 100. When a wide-angle lens is used, the diffuser 120 should be attached.
Compatible with Most Digital Cameras
Three TTL Circuits:
Conventional Nikonos Type Circuitry
Slave Triggered and Hardwired:
Compatible with Fibre Optic Cable Type-L and 5pin Sync Cable/N
Equipped with Sea&Sea's new slave TTL system:- DS-TTL II, and the first slave TTL strobe equipped with an exposure compensation (EV) control.
Revising the algorithms used for the DS-TTL system, the YS-D1 employs a totally new slave TTL system. The strobe can adjust the interval between the pre flash and the primary flash in order to be compatible with a wide-variety of cameras, if not all, on the market today. The strobe is equipped with DS-TTL ll mode which is more responsive, more precise and more reliable. The DS-TTL ll enables a variety of strobe sync photography such as slave TTL and slave manual (11 steps) with compact or digital SLR cameras. When used with a digital SLR camera in housing, the strobe can also be connected with a conventional sync cord and through a YS Converter for TTL strobe photography. In a clear water environment, two YS-D1 strobes in DS-TTL ll mode provide perfect lighting. When you would like to emphasize contrast, setting the main strobe in DS-TTL II mode and the secondary strobe in manual mode (11 steps) offers flexibility without limiting control.
Exposure Compensation (E/V)
By controlling the actual flash light level, the strobe realizes accurate exposure compensation with EV value. Regardless of a compact or a SLR camera, you can achieve any desired exposure compensation. However, many TTL systems are not reliable. The YS-D1’s DS-TTL exposure compensation function allows users to adjust the light level in TTL mode (-1.5EV, -1EV, -0.7EV, -0.3EV, +0.3EV, +0.7EV, +1EV, +1.5EV).
Simple controls and configuration enables easy operation.
Three Colour LED Indicator light on rear:
Ready Light: Red
Slave TTL Ready Light: Blue
DS-TTL II Conformation Light: Green
No Slave On/Off Switch:
The YS-D1 will auto-sense when a sync cord is connected, the slave ON/OFF switch will no longer be active.
Light Level Control Dial Positively Clicks into Position:
The light level control ratchets/clicks to aid in setting and operation.
Optional Strobe Mounts:
With the conventional YS adaptor, the strobe can be moved only upward and downward. However, with the included optional Ball Mount the strobe can be moved in a variety of angles.
INNOVATIVE, CREATIVE BUT TRADITIONAL....
LED Modelling Light
Over Pressure Relief Valve
Auto Power Off Function
Pre-Flash Cancellation Mode
Guide Number (ISO 100/m) (land): 32, 24 (with Diffuser 100 attached), 20 (with Diffuser 120 attached)
Beam Angle: 80°x80° (without diffuser), 100°x100°(diffuser 100), 120° x 120° (diffuser 120)
Power Source: 4x AA Batteries (A: 6V Ni-MH: 4.8V)
Number of Flashes (*1): A: 150 Ni-MH: 250
Recycle Time (Full *2): A = 2.8 sec. Ni-MH = 1.9 sec.
Colour Temperature: 5600K without diffuser / 5250K with diffuser
Exposure Control: DS-TTL II, Slave TTL, Manual
Light Level Control Dial (GN): 1 / 1.4 / 2 / 2.8 /4 / 5.6 /8 / 11 / 16 / 22 / 32 (11 steps)
DS-TTL II Exposure Compensation: +/-4 Steps
Manual Exposure: 11 Steps
Sync Cord: 5-pin Sync cord/N, Fiber-Optic Cable (L-type)
Dimensions (WxHxD): 87x135x111mm
Weight: 650g (without batteries)
Underwater Weight: -10g (without batteries)
Depth Rating: 100m
Strobe Mount: Traditional YS Mount and Optional (Included) 1” Ball Mount
*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.