o-TURTLE SMART 3 – TTL & Manual Trigger for Olympus and Panasonic systems

Reliable TTL and manual flash control via fiber optic or sync cord – now in the powerful SMART 3 version.

The o-TURTLE SMART 3 is our latest-generation TTL trigger designed for Olympus and Panasonic mirrorless cameras. This is more than a name update – it features all-new hardware, upgraded software, and expanded compatibility with today’s most advanced underwater strobes.

It is the perfect solution for professional underwater photographers who require accurate TTL exposure, smart operation, and broad compatibility with both cameras and strobes.

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 Compatible Olympus/Panasonic Cameras (TTL/MANUAL/RC/WIRELESS mode):

Compatible Olympus camera models: all mirrorless cameras (eg. OM-D E-M1,OM-D E-M1 mk2;OM-D E-M1 mk3; OM-D E-M5, OM-D E-M5, mk 2;OM-D E-M5 mk3;OM-D E-M10;OM-D E-M10 mk 2;OM-D E-M10 mk3;OM-D E-M4;OM E-M5)

Compatible Panasonic camera models: GH4, GH5, GH6  (Wireless TTL mode supported)

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 Compatible TTL Strobes (as of 06/2025):

• Ikelite DS160

• Seaflash 60D, 160D

• Inon Z240 / Z330

• Sea&Sea YS 110A, YS D1,YS-D2,YS D2J, YS-D3, YS-D3 DUO

• Subtronic 160,270

• One UW

• RED64

• Retra PRO , PROX, PRO MAX

• AOI Intelli Strobe   (Full functionality in Olympus RC mode HSS, TTL, MANUAL 
  Panasonic Wireless mode only TTL control available  (HF-1 feature)

• Backscatter HF-1  (Full functionality in Olympus RC mode HSS, TTL, MANUAL

         Panasonic Wireless mode only TTL control available  (HF-1 feature)

• APOLLO S

HSS (High-Speed Sync)  is automatically switching the limit which can be set in the setup software: 

⚠️ We regularly add new supported strobes – before purchasing, please download the PC or Mac configuration software to check compatibility with your system.

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 Key Features – SMART 3 Version

• User-replaceable battery with 3× the capacity of previous SMART 1–2 models

• USB-C connector for charging and configuration

• Reinforced switches and robust connector for LED or sync cord output

• "SMART" button to check battery status:

  • 4 flashes = 100%

  • 3 flashes = 75%

  • 2 flashes = 50%

  • 1 flash = 25%

• TTL & Manual mode switching via the camera menu – even underwater

  • First curtain

  • Second curtain

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Package Includes:

• 1× o-TURTLE SMART 3 TTL Trigger for Olympus/Panasonic with accu

• 1× plus accumulator

• 1× LED panel (or optional sync cord output)

• 1× USB-C charging and configuration cable
   

For fiber optic use, we recommend multicore (613) cables.
At checkout, please let us know which strobe model and connection type (fiber or sync cord) you will use – so we can pre-configure the trigger for optimal performance.

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Software Downloads

• PC Setup Software – available from website

• Mac Version – available from website