TRT TTL e-TURTLE 3 SMART TTL Optical Flash Trigger for Canon Mirrorless Cameras
TRT TTL e-TURTLE 3 SMART TTL Optical Flash Trigger for Canon Mirrorless Cameras
SKU: # trt-e-turtle-smart3-cn
Price $460.00
Overview / Product Description
TRT e-TURTLE SMART 3 – TTL & Manual Trigger for Canon Mirrorless Cameras
Reliable TTL and manual flash control via fiber optic or sync cord – now in the powerful SMART 3 version.
The e-TURTLE SMART 3 is TRT's latest-generation TTL trigger designed for Canon 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.
TRT company was the first to offer Canon TTL triggers, and with the SMART 3 series, we've raised the standard once again with even more functions and support.
TRT was the first to develop the stroboscope function, which allows multiple flashes within a single exposure.
TRT is also the first to drive AOI and Backscatter strobes using the TRT e-TURTLE SMART TTL trigger.
Tested Canon cameras (TTL / MANUAL mode):
- R3, R5, R5 mkII, R6, R6 mk2, R6mk3, M6
Compatible TTL Strobes (as of 12/2025):
- Inon Z and S series
- Sea&Sea YS-D3, YS-D3 DUO
- Retra PRO X, PRO MAX
- AOI Intelli Strobe (SONY settings)
- Backscatter HF-1 (SONY settings)
- APOLLO III V2.0,
- APOLLO S
HSS (High-Speed Sync) is available with compatible strobes.
All settings (1St curtain / 2nd curtain, Manual, TTL or HSS settings stored in the trigger. After sleep mode, you do not have to set all parameters again!
TRT regularly adds new supported strobes – before purchasing, please download the PC or Mac configuration software to check compatibility with your system.
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 a 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 & HSS MANUAL mode switching via the camera menu – even underwater
- All external flash functions are available (Custom function does not work!)
- Strobe/multiflash mode ( You can make 1-10 pcs flashing in one expo between 1/10 and 2 sec front curtain)
- TRT is the only manufacturer to offer this feature in its products.
Package Includes:
- 1× e-TURTLE SMART 3 TTL Trigger for Canon MILC with accu
- 1× plus accumulator
- 1× LED panel (or optional sync cord output)
- 1× USB-C charging and configuration cable
For fiber optic use, TRT recommends multicore (613) cables.
At checkout, please let us know which strobe model and connection type (fiber or sync cord) you will use – so TRT can pre-configure the trigger for optimal performance.