The Sea & Sea YS-03 Solis is a compact slave-TTL underwater strobe built for divers who want automatic TTL flash exposure without manually dialing in output. It carries a guide number of 20 (ISO 100/m, land), a single OFF to TTL rotary switch, and a 75m depth rating. This listing does not include the fiber-optic sync cable, which is required to connect the strobe to a camera and must be purchased separately.
Who it is for
The YS-03 Solis suits underwater photographers who want simple, beginner-friendly strobe lighting rather than manual flash control. Because it mimics the light intensity of a camera’s built-in flash, it works with any camera, regardless of make, that has a pre-flash and TTL flash exposure function. It is a good fit for divers moving up from a built-in flash who want more even, diffused lighting without learning manual strobe settings.
Key details
- Guide number: 20 (ISO 100/m, land)
- Beam angle: 100° x 100°, or 110° x 110° with the diffuser
- Batteries: 4 x AA, alkaline (6V) or Ni-MH (4.8V)
- Flash count: approximately 230 with alkaline, 300 with Ni-MH (2500mAh)
- Recycle time: 2.5 seconds alkaline, 1.9 seconds Ni-MH
- Color temperature: 5600K, or 5250K with the diffuser fitted
- Depth rating: 75m
- Dimensions: 68mm x 108mm x 129mm
- Weight: 430g body only, excluding batteries, with fixing bolt fitted; approximately +10g underwater with batteries installed
Compatibility and sizing
The YS-03 Solis is designed to sync with any camera that has a pre-flash and a TTL flash exposure function. It requires a fiber-optic sync cable to communicate with the camera’s built-in flash; this cable is not included with this listing and must be sourced separately before the strobe can be used.
What’s in the box
- Fixing/mounting bolt
- Half-translucent diffuser
DiveCatalog.com is an authorized Sea & Sea dealer and a dive shop in Irvine, California since 2003. Call or chat with us at 888-701-4017 if you have questions about fit, compatibility, or whether you need the fiber-optic cable for your camera setup.
