Illuminate the underwater world in rich, natural color at depths up to 328' with the yellow YS-D2J Underwater Strobe from Sea & Sea. It features a guide number of 104' / 32 m on land at ISO 100; this value changes to 65' with the supplied Diffuser 120, or 78' with the supplied Diffuser 100. The flash has a beam angle of 80 x 80°, which is widened to 100 x 100° with the Diffuser 100 and 120 x 120° with the Diffuser 120. A daylight-balanced color temperature of 5600K enables the strobe to restore colors that are absorbed underwater, thus allowing for more vibrant and accurate images.
Both TTL and manual flash exposure modes are available on the YS-D2J. Unlike the previous model, the YS-D1, this strobe features audible and ready-light TTL confirmation. Additionally, the rear side of the unit has a glowing panel with easy-to-read controls, which will be helpful in low-light situations. The YS-D2J is configured with a 5-pin sync cord connector and a fiber-optic port for connection to an underwater camera housing. It is powered by four AA Alkaline or NiMH batteries.