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The YS-D3 DUO Strobe from Sea & Sea

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YS-D3 DUO

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 Modes

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.

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.

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.

YS-D3 DUO

Light Source

This is a high-performance strobe that pursues quality of light, and its high luminous flux and wide beam angle are effective for wide-angle photography with fish-eye lenses and other wide-angle lenses. The strobe also features our proprietary light distribution technology.

High light intensity GN33                                                                                             

The light output has a guide number (GN) of 33, one of the highest among general-purpose underwater strobes. The use of two discharge tubes increases power and achieves GN 33 at full flashing.

Uniform and even light distribution                                                                         

The originally developed “aspherical toroidal lens” is placed in front of the light-emitting tube, and the two discharge tubes and the “aspherical toroidal lens” provide uniform and even light distribution to the periphery, making it an ideal light source for external illumination.

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.

YS-D3 DUO

Operability

We placed particular emphasis on ease of use, especially underwater handling. The more you use it, the more you will appreciate its easy-to-turn dial, easy-to-see panel display, and good underwater balance.

Large dial                                                                                                               

Underwater operation is performed with the mode switch and light intensity control dial. The large dials are non-slip and the height difference allows smooth operation even when wearing thick gloves. It is designed to stop in steps with a click-click to minimize malfunctions.

Underwater Balance                                                                                                      

YS-D3 DUO has almost zero buoyancy with the ball mount and clamp in place. Heavy underwater weight requires unexpected force to operate the clamp, but the YS-D3 DUO is unaffected by buoyancy, so operation is smooth. Even if you change the strobe position, the underwater balance of the entire housing set does not change significantly and you can feel how easy it is to handle.

www.sea-sea.com

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UWACAM Impresses at BOOT 2025 with New App

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UWACAM

BOOT 2025, the world’s largest water sports trade fair, provided the perfect stage for the launch of the new UWACAM app which meanwhile is rated at an excellent 4.8 out of 5 in the Apple App Store.

Optimized for DIVEVOLK (divevolkdiving.com) Seatouch housings and developed in collaboration with award-winning underwater filmmaker Matthias Lebo (matthiaslebo.com), this app is user-friendly and features large, clear controls, enabling effortless and stunning shots.

It offers professional functions typically found in high-end cameras, supports the LOG format for advanced color corrections, includes built-in LUTs (Color Lookup Tables) to restore underwater colors, and provides a manual mode, user presets, histogram, focus peaking, zebra function, and much more.

As an official product of Bumbayaya GmbH (bumbayaya.ch / uwacam.com), the UWACAM app has been specifically designed for use in DIVEVOLK Seatouch underwater housings. Visitors were able to experience the app live at the DIVEVOLK booth.

UWACAM simplifies underwater photography with an intuitive user interface that is perfectly adapted for underwater operation. The app offers precise control and delivers impressive results for both hobby divers and professionals.

UWACAM

Why UWACAM?

  • Specifically developed for DIVEVOLK: Perfect integration into Seatouch housings for effortless underwater operation.
  • Simple yet professional: Switch between an Easy Automatic Mode for beginners and a comprehensive Pro Mode.
  • All-in-one app: Supports all photo and video formats, including LOG for professional color corrections.
  • Pro Features:
    • Focus Peaking: Precise focus control.
    • Zebra Function: Prevents over- or underexposure.
    • Built-in LUTs: Color corrections for realistic underwater shots.
    • Manual Controls: Fine-tune exposure, focus, white balance, and more.
  • Diver-Specific Features: Automatic color correction based on environment and dive depth, plus an optional magnetic compass overlay.

“We are excited to present UWACAM at BOOT 2025,” says Matthias Lebo, who played a key role in its development. “With UWACAM, we bring the beauty of the underwater world directly into the hands of divers and snorkelers—intuitive, powerful, and adaptable.”

Customer Reviews

UWACAM

UWACAM

Available in the App Store

UWACAM is now available for download in the App Store.
https://apps.apple.com/de/app/uwacam/id6714463099

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Gear Review: Atomic Blade Fins (Watch Video)

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atomic blade fins

In a video produced exclusively for Scubaverse.com, Jeff Goodman reviews the Blade Fins from Atomic Aquatics.

For more information about products from Atomic Aquatics, visit www.atomicaquatics.com.

Sea & Sea is the home of Atomic Aquatics and other leading diving brands in the UK. 

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