Japanâ€™s Sea & Sea has released its YS-250PRO underwater strobe for digital underwater photography.
The new strobe is equipped with a large circular arc tube that emits a powerful flash at guide number 32 (ISO 100/m on land) when power is set to FULL. It provides incremental manual flash power adjustment in 12 steps for graduations of light.
Sea & Sea says the YS-250PRO is fast: it recycles in 1.8 seconds. Its high-capacity Ni-MH battery, designed exclusively for the strobe, stores enough power when fully charged for 200 full flashes. A high-luminosity white LED target light in the center of the strobe shows precisely where the strobe is pointed, and a ready lamp and a TTL confirmation lamp on each side of the strobe indicate when the strobe is charged and when it has been controlled by the cameraâ€™s TTL.
The Sea & Sea Underwater Strobe YS-250PRO measures 07x130x223mm, weigh 1,780g and can be used up to a depth of 60m /200ft. It is available in Japan for approximately 102,900 Yen ($865).