YS-D3 MKII Underwater Strobe by Sea&Sea

A strobe adaptor which narrows the beam angle to be directed at a target point. Diameter of the opening 25mm. Designed with internal prism which aligns target light`s light axis and strobe`s light axis to the Center. By using a snoot, the light surrounding the subject is cut off and only the subject is brought into view.

Required for the use of the Marelux SOFT Pro on a Sea&Sea YS-D3 underwater flash.

Increases beam angle to 150°×170° Essential accessory when fisheye lens is used, or soft light is required. + Guide number will drop to -1.5EV when it is fitted.

The surface is made of a fine mesh skin with a fine mesh finish. Neoprene strobe cover on the back.

Optical guiding device to fire the strobe when a fiber-optic cable is not used. This device is for manual use only. The device is effective if multiple strobes are used in a fixed position.  However, the flash may not fire depending on the position of where multiple flashes are occurring in relation to that of the master flash.

The Weefine WFS02 ring flashes have been specifically designed for underwater use to provide colourful and natural wide-angle illumination . A professional-grade round flash tube and powder-coated reflector perfectly produce a soft, blindingly warm 5500K light. A 200 lumen white pilot light and a 2 watt red light help with night photography and beautiful subjects.

Focus on quality of light Retra Flash is the world's first underwater flashgun with a fully circular flash tube. Combined with a completely new reflector design it produces a high quality light output no other flashgun this size can offer. It's not all about guide numbers. What's new:  Up to 25% faster recycle times and up to 20% more flashes per battery charge thanks to a optimised flash triggering system New lightweight housing with an 8% reduction of total mass (all existing accessories remain compatible) Redesigned optical sensing module with improved signal processing Direct mounting for the E-Opto converter (no optical cable in between) Improved TTL accuracy and TTL maximum power output (all existing converters remain compatible) Reinforced mode and power dials in case of impact Dedicated HSS mode on the control panel User interface made by photographers We've spent hundreds of hours analysing photographers feedback from the field and tweaking our designs. The end result is a back panel you are immediately familiar with. Controls are large and tactile, for all types of hands or gloves. You will always get what you expected when using the control panel of the Retra Flash.  Underwater flashgun for the 21st century The new Retra Flash connects via bluetooth to your smartphone or tablet (patent pending technology). Check the status of your flashgun, set advanced features like HSS, Smart SL, Pilot Adjust and get firmware updates with the "Retra UWT" App. The new Retra Flash is a true system that is also built for the future.  Design your light without boundaries With the bayonet mount your Retra Flash can be transformed into a specialist lighting tool. Diffusers for blue water, green water and a special diffuser for sharks are available. For macro work there are several options to reduce the angle of the light beam. Secure mounting is the way.

The YS-01 underwater flash from Seas&Seas, the best-selling flash unit in its class, has been redesigned and now has improved performance. Same DS-TTL ll control as the high-quality Sea&Sea models The DS-TTL ll control circuit helps to automatically emit the correct amount of light based on the light intensity of the camera's built-in flash. The flash allows you to set the light intensity stronger or weaker than the programmed standard exposure. This feature allows even an inexperienced underwater photographer to instinctively control the amount of light they want. Example: If you are using two YS-01 Solis flash units, one on the right and one on the left, and there are white soft corals on the right of your photographic subject, you can subtly reduce the light intensity of the flash unit on the right alone by simply setting the brightness control to minus. With the improved circuitry, you can achieve the desired lighting for all your underwater shots in no time at all. Increased light intensity from the pilot light Compared to the previous model, the light intensity of the focus light of the YS-01 Solis is 40 percent stronger, which has improved the visibility of the light beam and helps you to judge the position of the flash more accurately. Superior light distribution and wide beam angle Due to the exclusively developed prismatic lens, the YS-01 Solis realises a wide beam angle of 100°x 100° with an ideal flat light distribution, even when the accessory diffuser is not attached. With the diffuser, the light becomes softer and the beam angle increases to 110°x 110°.

Developed by underwater photographers for underwater photographers - with this claim Retra UWT has dedicated itself to the development of one of the best underwater flash units in the world.  Focus on quality of light With a unique flash tube design and a completely new reflector, Retra-UWT has achieved a light output that no other flash unit of this size can offer. But it is not only about guide numbers. "All you need to remember about guide numbers is not to use them as a guide when buying a flash. The guide number is determined by both the light output and the spread of the beam. A focused beam produces a much higher guide number than a widely scattered beam, but the latter is more desirable underwater." Alex Mustard in the Underwater Photography Masterclass (2016) What's new: Up to 25% faster recycle times and up to 20% more flashes per battery charge thanks to a optimised flash triggering system New lightweight housing with an 8% reduction of total mass (all existing accessories remain compatible) Redesigned optical sensing module with improved signal processing Direct mounting for the E-Opto converter (no optical cable in between) Improved TTL accuracy and TTL maximum power output (all existing converters remain compatible) Reinforced mode and power dials in case of impact Dedicated HSS mode on the control panel The user interface created by photographers. By listening to underwater photographers using the original Retra Flash, the developers have optimized the user interface. The interaction and functionality of the new Retra Flash is even more intuitive and precise. Double O-ring and leak detector for the battery compartment Our goal is to achieve a 0% statistic for battery compartment flooding. Therefore we introduce a double O-ring on the battery cover and on the optional leak detector. In the unlikely event that the battery compartment is flooded, you will be notified by the Retra Flash to check the battery compartment as soon as possible.  Performance in numbers Flash power: 150 Ws Colour temperature: 4900 K Pilot light output (angle): 500 lm (20º) Recycling time at 100% power (4x Eneloop pro): ~3 s HSS ready: YES Power levels: 13 Leak detector: YES Bayonet connection type: A1 Electrical connection: via converter Optical connection (compatible with Inon and Sea&Sea connectors): YES Weight (without batteries, including 1" mounting ball): 865 g 

High-spec underwater strobe with large light output The YS-D3 DUO by Sea&Sea 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. Blue: DS-TTL Red: RC mode Orange: Manual 1 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. In DS-TTL mode. Exposure compensation can be made with the light level control dial on the right. +2.0 to -2.0 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. In RC mode. The light level control dial on the right can be used for exposure compensation. 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. In manual mode. Select the guide number with the light level control dial. YS-D3 DOU can also be connected with a sync cord 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 DS-TTL mode and manual mode ・ Click here to shoot with DS-TTLusing an optical/TTL converter. *Custom settings are not required when using manual trigger. Use the default settings. ・When shooting in DS-TTL/Manual using the built-in flash. Nikon  Canon  Sony Others *See page E-28 of the instruction manual for procedures to change custom settings. 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. 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. Two discharge tubes 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. Aspherical optical troidal lens 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). Without diffuser With attached diffuser (optional) Dome diffuser installed Operability Sea&Seas 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. Large dial Easy-to-read backlit panel The indicator color changes each time the mode switch is repositioned. Blue (in DS-TTLII mode), red (in RC mode), yellow (in manual mode with pre-flash), and green (in manual mode without pre-flash) are the different colors for identification, so positioning of the controls is easy to see even when night diving. In DS-TTLII mode In RC mode In manual non pre-flash mode Underwater Balance YS-D3 DUO by Sea&Sea 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. Two patterns of target lights The LED target light function is useful for focusing and checking the beam angle of the strobe. Choose either 300 lumens or 150 lumens depending on the situation. 300 lumen 150 lumen One-touch battery replacement The power source is AA batteries, which are widely distributed in general. Four of the same type (1.5V alkaline AA batteries and 1.2V nickel-hydrogen AA batteries). The battery box is opened and closed by a bayonet type that does not put a burden on the O-ring. It is a one-touch operation and does not require force like the screw-in type. Hook for Fiber Optics A hook for fiber-optic cable on the strobe body smartly guides the fiber-optic cable. How to connect with the arm of your choice A straight type ball base is included, but the YS base or Strobe Ball Base 35 can be attached as an option depending on the application. (optional) YS base (optional) Diagonal ball base Accessories A wide variety of accessories expand the shooting range. Snoot An adapter that turns a strobe light into a spot light. An internal prism allows the optical axis of the target light to be perfectly aligned with the optical axis of the strobe light. The beam aperture is 25mm and the use of a snoot cuts off light around the subject to make only the subject stand out. Dome diffuser Diffuser that widens the beam angle to 150° x 170°. Light intensity is reduced by approximately -1.5 EV (GN28). Flash prism Light guiding prism that can emit YS-D3 DUO light without using a fiber-optic cable; supports RC mode and manual Emission.