YS-250PRO Underwater Strobe
Sea&Sea's YS flagship model for professionals is fast and powerful with broad coverage: guide number 32, beam angle 105.
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.
| Arm Attachment: | 1-inch ballhead |
|---|---|
| Battery: | AA Batteries |
| Body Material: | Polycarbonate |
| Power setting: | manuely, sTLL |
| Strobe connector: | electrical N5, optical Sea&Sea |
- [Guide number (ISO 100/m) (land)] 32
- [Beam angle] 105°x 105° (with diffuser 115°x 115°)
- [Rechargeable batteries] Rechargeable battery for YS-250PRO
- [Number of flashes*1] 200
- [Recharge time (full)*2] 1.8
- [Colour temperature] 5,600K
- [Colour temperature with diffuser] 5,200K
- [Depth performance] 60m / 200ft
- [Dimensions (WxHxD)] 107x130x223mm / 4.3x5.2x9inch
- [Weight] : 1,383g / 48.4oz (without batteries) * Attach a mounting bolt to the flash unit.
- [Weight under water] : Approx. 80 g (with batteries)
[Other]
- Exposure control: TTL, Manual (control of light intensity)
- GN 0.7/1/1.4/2/2.8/4/5.6/8/11/16/22/32 (12 levels)
- Pre-flash control: Equipped with pre-flash cancellation mode
- Slave function
- Sync cable: 5-pin sync cable/N17100, fibre optic cable
- Overpressure release valve
- LED target light
- Test flash function
- Acoustic signal to confirm TTL / READY
*1 The number of flashes and recharge time depend on the battery brand, temperature and frequency of use. *2 The number of flashes and recharge time of Ni-MH batteries were tested with 2700mAh batteries.
- YS-250PRO underwater strobe by Sea&Sea
- Mounting bolt
- Diffuser
Login
