Sea & Sea YS-D3 DUO DS-TTL RC Underwater Strobe
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$749.95
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Quick Facts About Sea & Sea YS-D3 DUO DS-TTL RC Underwater Strobe
- Selected model: YS-D3 DUO, product 03129
- DS-TTL II, OM SYSTEM RC and manual modes
- Guide number 33 measured on land
- Eleven manual output steps
- Target light: 300 or 150 lumens
- Listed depth rating: 100 m
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DUO control modes
RC support is a model-specific reason to choose it
The DUO combines DS-TTL II and manual operation with OM SYSTEM RC compatibility. Match the camera and triggering arrangement to the selected mode.
The YS-D3 DUO with OM SYSTEM RC support
The Sea & Sea YS-D3 DUO adds compatibility with the OM SYSTEM optical RC flash-control system alongside DS-TTL II and manual modes. The selected gold-finish model is manufacturer product 03129.
Who this suits
The specific reason to consider the DUO is the RC function for a compatible Olympus / OM SYSTEM camera setup, as well as its other flash-control choices. Check the exact camera, housing and trigger configuration. A DUO label should not be replaced with a YS-D3 Lightning listing simply because both are underwater strobes.
Read guide numbers with their measurement conditions
The listed guide number is 33, measured on land. The source explicitly distinguishes above-water measurements from underwater output and beam behavior. Use the same measurement conditions when comparing another strobe rather than treating the number alone as an underwater brightness ranking.
Manual output and the target light
Manual flash output has eleven steps. The target light has two settings, 300 and 150 lumens; that is the aiming-light output, not the power rating of the photographic flash. Backlit controls and color-coded mode feedback help identify which operating mode is selected.
Connections and supplied accessories
The specification names 5-pin Sync cord/N and fiber-optic cable connections. The supplied items include a ball-mount adapter and diffuser, with grease, a wrench and small mounting accessories listed in the retained package evidence. Optional snoots and dome diffusers are separate accessories; do not assume a package contains every illustrated attachment.
The right comparison
Keep product 03129 and the DUO designation explicit. Its RC compatibility, manual range and actual connection requirements are more useful buying checks than merging it with another D3 generation or treating optional accessories as included.
What divers ask about the Sea & Sea YS-D3 DUO DS-TTL RC Underwater Strobe before buying
Is the DUO the same as the Lightning model?
No. This selection is the YS-D3 DUO, product 03129.
The RC-capable model should not be silently replaced with a Lightning listing.
Does RC work with every camera?
The RC function is described for the Olympus / OM SYSTEM Wireless RC Flash System.
Check the exact camera, housing and trigger compatibility for the mode you intend to use.
Is guide number 33 an underwater measurement?
No. The retained source says the guide number is measured on land.
That condition matters when comparing output and beam coverage.
What do the 300 and 150 lumen figures describe?
They are the two target-light settings.
They are not the output specification of the photographic flash.
Specifications for Sea & Sea YS-D3 DUO DS-TTL RC Underwater Strobe
- Selected variant
- Gold | manufacturer product number 03129
- Shooting modes
- DS-TTL II | RC and manual
- Depth rating
- 100 m | 330 ft
- Guide number
- 33
- Manual light-level steps
- 11
- Target light
- 300 | 150 lumens
- Connections
- 5-pin Sync cord/N | fiber-optic cable
- Included
- Ball-mount adapter | diffuser | silicone grease | hex wrench | diffuser strap | fiber-optic socket rubber cap
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How DIVEIN tests: every product in our buying guides is evaluated by our dive-certified team in real conditions, across multiple dives at varying depths. We buy or borrow gear independently so our recommendations are never pay-to-win.