Sea & Sea
Other products by Sea & Sea
SKU: 03108A
Reg. Price: $1,099.00
Our Price: $1,069.95
on orders of $25.00 or more.
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Sea & Sea YS-250 Pro TTL Underwater Strobe (Does Not Include Sync Cord)

Amazing power to help you capture any subject you aim at.

The YS-250PRO is designed for demanding professionals, packed with revolutionary new features to meet the challenges of digital photography.


  • A large circular arc tube emits a powerful flash at guide number 32 (its value on land, ISO 100/m) when power is set to FULL.

  • It provides incremental manual flash power adjustment in 12 steps for graduations of light.

  • The YS-250PRO is lightning 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 camera’s TTL.

  • An audible signal sounds when the lamps light so you can concentrate on your subject in the viewfinder.


  • Guide Number (ISO 100/m) (land): 32

  • Beam Angle: 105°x 105° (with diffuser 115°x 115°)

  • Batteries: Battery for YS-250PRO

  • Number of Flashes*1: 200

  • Recycle time (full)*2: 1.8

  • Color temperature: 5,600K

  • Color temperature (w/diffuser): 5,200K

  • Depth rating: 60m / 200ft

  • Dimensions: 107 x 130 x 223 mm / 4.3 x 5.2 x 9 inch

  • Weight: 1,383g / 48.4oz (w/o batteries) * Attached a fixing bolt to the Strobe.

  • Underwater weight : 80g / 2.8oz(w/ batteries)

  • Exposure control: TTL, Manual(Light-level control)

  • GN 0.7/1/1.4/2/2.8/4/5.6/8/11/16/22/32 (12 steps)

  • Pre-flash control: Equipped with pre-flash cancel mode

  • Slave function

  • Sync cord: 5-pin Sync cord/N17100, Fiber-Optic Cable

  • Over-pressure relief valve

  • LED target light

  • Test flash function

  • TTL / READY confirmation audible signal

Note: *1 Number of flashes and recycle time depends on the battery brand, temperature and frequency of use.

*2 Number of flashes and recycle time of Ni-MH batteries were tested on 2700mAh batteries.


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