The YS-D3 DUO is a high-specification underwater strobe with three shooting modes: DS-TTL, RC mode, and manual.

The YS-D3 DUO delivers even and uniform light distribution with a large light output of GN33.

Custom settings allow the strobe to be used with high precision with a variety of cameras and shooting styles.

Shooting Mode

The mode switch can be used to switch between "DS-TTL", "RC mode", and "Manual". It is conveniently identifiable by color.

Highly accurate DS-TTL dimming

DS-TTL dimming accuracy has been greatly improved by adopting a newly designed light receiving sensor.

By applying detailed custom settings, it can be used with high accuracy with a wide variety of cameras of multiple brands.

*When shooting TTL with a camera of a brand other than OM SYSTEM (OLYMPUS), select DS-TTL as the shooting mode.

*Pre-custom settings must be made for each camera in advance when shooting with DS-TTL.

Highly accurate DS-TTL dimming

The "RC System" is a flash system for OM SYSTEM digital cameras, and the YS-D3 DUO was developed in collaboration with OM Digital Solutions to incorporate the RC mode.

RC mode is a light control mode in which the camera automatically controls the flash output based on the brightness through the lens. The YS-D3 DUO is equipped with a more precise "RC mode" that was developed based on system information officially provided by OM Digital Solutions. The YS-D3 DUO is equipped with a more precise "RC mode" developed based on the system information officially provided by OM Digital Solutions.

*Since the strobe is system-linked to the camera, flash output compensation can be adjusted not only on the strobe side but also on the camera side while shooting in RC mode.

*Setting the camera to RC mode can prolong (save) the camera's battery life.

Manual mode has 11 steps

In manual mode, light intensity can be adjusted in 11 steps. The settings are (GN: 1 / 1.4 / 2 / 2.8 / 4 / 5.6 / 8 / 11 / 16 / 22 / 33). The value can be easily seen on the scale on the light intensity adjustment dial. Compatible with digital cameras that do not have a pre-flash function.

*Only manual flash is available, but if your camera housing is equipped with a strobe connector/converter connector, you can also use a sync cord to connect the strobe.

Customize

The YS-D3 DUO can be set up with high precision to accommodate a variety of shooting styles with different cameras by making custom settings. Refer to the table for settings according to the shooting mode used and the method of synchronizing the camera and strobe.

Shooting in RC mode

When shooting in RC mode with an OM SYSTEMS (OLYMPUS) camera, no custom settings are required. Select "RC mode shooting" in the flash mode setting on the camera side; YS-D3 DUO should be set to "RC" for shooting mode.

*For details on "RC mode shooting," please refer to the user's manual of the camera to be used.

Adjust beam angle with diffuser

The beam angle is 80°×105° without the diffuser and 100°×110° with the included diffuser for soft lighting.

When the optional dome diffuser is attached, the beam angle increases to 150°×170°. The dome diffuser is effective when using a fisheye lens or when lighting with soft light (guide number is reduced by approximately -1.5 EV).

 manual_en_03129_ys3dduo.pdf