Product Information



[ Discontinued Products ]
The YS-27DX strobe is a compact and affordable manual strobe for most digital cameras in the market.
U/W Strobe


YS-27DX (Blue)
(Product No.03107)

[Accessories] Fixing bolt, diffuser

*When the YS-27DX strobe is used with a compact digital camera in a housing, use the Fiber-Optic Cable (L-type)50107.

O-ring Set
(Product No.10580)
   Enlarged image


Powerful manual controls from wide-angle to macro photography
The YS-27DX strobe is designed for multipurpose underwater photography. This strobe has beam angle of 105°x 84°and a guide number of up to 20 (ISO 100 / m) / 66 (ISO 100 / feet), providing spread and power for subjects that range from wide-angle macro. The light level control dial of the YS-27DX has nine different light level control, which increments from a minimum power of GN 1.7 to a maximum power of GN 20 (1EV step). The light level control dial makes you take ideal pictures, precisely adjustable to get just the right amount of light for the subject at hand. The YS-27DX offers a pre-flash cancel mode (*1) that ensures the strobe won’t fire prematurely when used with digital cameras that emit a small pre-flash burst before the main flash. This strobe is compatible with most digital cameras that have a pre-flash.
*1 Some digital cameras adjust flash levels after a first flash and then capture an image with a second flash. This first flash is called the pre-flash. The strobe’s pre-flash cancel function ignores the pre-flash and synchronizes the strobe with the second flash.
*The YS-27DX is not compatible with digital cameras that emit two or more pre-flashes.


[ YS-27DX ]
[Guide Number (ISO 100/m) (land)] 20
[Beam Angle] 105° x 84°
[Batteries] 4xAA: A: 6V / O: 6V / Ni-MH: 4.8V
[Number of Flashes*1] A: 350 / O: 420 / Ni-MH: 490
[Recycle time (full)*2] A: 2.5 / O: 2 / Ni-MH: 2
[Color temperature] 5500K
[Color temperature w/diffuser] 5200K
[Depth rating] 60m / 200ft
[Dimensions (WxHxD)] 87x122x135mm / 3.4x4.8x5.3inch
[Weight] 540g / 19oz
[Underwater weight] -40g / -1.4oz
- Exposure control: Light-level control from GN 1.7 to GN 20 (in 9 increments) with a manual controller
- Pre-flash control: Equipped with pre-flash cancel mode (ignores one pre-flash)
- Slave function
- Sync cord: Fiber-Optic Cable (L-type)50107 for compact digital cameras
- Over-pressure relief valve

*1 Number of flashes and recycle time depend on the battery brand, temperature and frequency of use.
*2 Number of flashes and recycle time of Ni-MH batteries were tested by 2700mAh batteries.

Brochure & Manual Download