e-TURTLE 3 SMART TTL trigger for Canon MILC systems

The e-TURTLE SMART 3 TTL Trigger for Canon mirrorless (MILC) cameras is a next-generation underwater flash control system designed for professional underwater photographers who demand precision, reliability, and maximum flexibility.

It delivers accurate TTL, Manual, and High-Speed Sync (HSS) control via fiber optic or sync cord connection, ensuring consistent exposure and full creative lighting control underwater. Built on the advanced SMART 3 platform, this upgraded system introduces new hardware architecture, expanded strobe compatibility, and enhanced power efficiency for long-duration dives.

Beyond a simple upgrade, SMART 3 represents a major evolution in underwater flash triggering—featuring improved battery performance, USB-C connectivity, reinforced hardware components, and intelligent software-based configuration.

Designed for Canon mirrorless systems, it integrates seamlessly into professional underwater housing setups and supports a wide range of modern underwater strobes.
 

Key Features

• Advanced TTL, Manual, and HSS flash control
• Designed specifically for Canon mirrorless (MILC) camera systems
• Supports fiber optic LED and sync cord triggering
• Next-generation SMART 3 hardware and software platform
• User-replaceable high-capacity battery (up to 3× capacity of previous versions)
• USB-C charging and configuration interface
• Reinforced switches and durable underwater-grade connectors
• Intelligent battery status indicator (“SMART” button system)
• Strobe/multiflash mode (1–10 flashes per exposure, 1/10s–2s interval, front curtain)
• Camera-menu-based control for TTL / Manual / HSS switching (usable underwater)
• Internal storage of flash settings (TTL, sync mode, curtain settings persist after sleep mode)
• Software-configurable system for strobe compatibility and advanced setup
• Optimized for professional underwater photography workflows
   

Specifications

• Product type: Underwater TTL / Manual / HSS flash trigger
• System compatibility: Canon mirrorless (MILC) cameras
• Flash modes: TTL, Manual, HSS Manual mode
• Trigger methods: Fiber optic LED or sync cord output
• Power system: Rechargeable user-replaceable SMART 3 battery system
• Charging interface: USB-C
• Configuration: PC/Mac software setup tool
• Internal features: Multishot / stroboscopic flash mode (1–10 flashes per exposure)
• Housing integration: Internal installation in compatible underwater housings
• Settings memory: Persistent flash settings after sleep mode
• Camera Compatibility
  • Canon mirrorless (MILC) camera systems
  • Tested Canon models include:
  • Canon EOS R3
  • Canon EOS R5 / R5 Mark II
  • Canon EOS R6 / R6 Mark II / R6 Mark III
  • Canon EOS M6
• Compatibility may vary depending on firmware and system configuration via SMART 3 software.
• Strobe Compatibility (TTL / Manual / HSS depending on setup)
  • Inon Z-Series and S-Series strobes
  • Sea & Sea YS-D3 / YS-D3 Duo
  • Retra PRO X / PRO MAX
  • AOI Intelli Strobe (Sony configuration mode)
  • Backscatter HF-1 (Sony configuration mode)
  • Marelux APOLLO III V2.0
  • Marelux APOLLO S
• Additional strobe profiles are regularly added via software updates.
• Trigger Connection Compatibility
• Fiber optic LED triggering systems
• Electrical sync cord underwater strobes
• Multi-brand TTL and manual strobe systems (via configuration profiles)
   

In the Box

• 1× e-TURTLE SMART 3 TTL Trigger for Canon MILC cameras
• 1× SMART 3 rechargeable battery (high-capacity, user-replaceable)
• 1× LED fiber optic output module or sync cord interface
• 1× USB-C charging and configuration cable
• 1× User manual / setup guide