Included Item Details

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B&H# SEYS01S MFR# SS-03112
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The Sea & Sea YS-01 is a compact slave strobe that can be used for wide-angle or macro photography. With its circular beam angle of 100 x 100° and a guide number of up to 20 it is the perfect strobe for small Point & Shoot cameras or DSLRs. The DS-TTL (Digital Slave TTL) feature gives you automatic exposure control when shooting in slave mode. It is best to connect the strobe to the housing with a fiber optic cable. For finer lighting control it is best to shoot in manual mode. This is easy since the YS-01 has a ten-level power dial located on the back of the strobe.

The YS-01 is powered by 4-AA batteries. You can get up to 330 flashes at full power with NiMH batteries. With NiMH batteries you will get a blazing fast 1.9 second recycle time, so you will not miss all the action on the reef. The YS-01 has a bright 1W LED target light, that is bright enough to use as a dive light on night dives.

An external flash is your most important accessory. The ocean is one big, blue filter. As you descend, the reds and oranges quickly become muted shades of blue and gray. Using a color corrected strobe light will bring back your subject's natural color.

Connects with a fiber optic cable and gives you DS-TTL (Digital Slave TTL automatic exposure control
Manual control is easy with the ten-level power dial
Circular beam for a broad 100° x 100° angle of coverage
Bright LED target light in center of the strobe face is bright enough for night dives
Guide number 20 (ISO 100/m) for high power performance
Recycle time of approximately 1.9 seconds with NiMH batteries at full power. Alkaline cells may also be used. Lithium batteries are not compatible, and may cause damage by overheating
Configuration Strobe head only
Guide No. 20 (ISO 100/m)
Power Rating Not specified
Coverage Angle 100° x 100°
Depth Rating 250' (75m)
Flash Modes DS-TTL, manual
Exposure Control 10 step guide number control dial
Slave Yes
Targeting Light Yes, LED
Audible Signal No
Color Temperature 5600° K
Recycle Time NiMH Battery: approximately 1.9 second
Flashes (Full Power) Alkaline: 230
NiMH: 330
Power Source 4 AA NiMH or alkaline batteries
Lithium batteries are not compatible
Dimensions 2.7 x 4.3 x 5.2" (68 x 108 x 129mm)
Weight (Land) 17.7 oz (505g)
Sea & Sea YS-01 Strobe Head Only
  • Diffuser
  • Arm Fixing Bolt
  • Silicon Grease
  • O-Ring Installed
  • 1-Year Warranty