o-TURTLE 3 SMART TTL trigger for Olympus / Panasonic

The o-TURTLE SMART 3 is TRT's 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.

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)

 Compatible TTL Strobes (as of 06/2025):

• Ikelite DS160
• Inon Z240 / Z330
• Sea&Sea YS 110A, YS D1,YS-D2,YS D2J, YS-D3, YS-D3 DUO
• 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)

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

 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

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.