Imagine liberating your creativity from the chains of cables and missed flashes, as the Canon ST-E3-RT seamlessly commands your Speedlites with 100-meter radio precision. Feel the thrill of instant, full-TTL control and lightning-fast sync that transforms every frame into a masterpiece. Elevate your storytelling and capture the perfect moment every time.
Specifications
| Core Specifications | |
|---|---|
| Type | Radio transmissions wireless Speedlite transmitter |
| Transmission Range | Approx. 98.4 ft (30 m) |
| Flash Control | Ratio control: 1:8 - 1:1 - 8:1, power 1/3-stop increments |
| Coverage | Transmission Angle: 360° all around |
| Power Source | 2× AA/LR6 alkaline batteries (Ni-MH and Lithium batteries can also be used); Battery Life: Approx. 10 hours continuously at 73 °F / 23 °C |
| Physical Specifications | |
| Dimensions | 2.65 × 2.42 × 3.05 in (67.4 × 61.5 × 77.4 mm) |
| Weight | 3.9 oz (110 g) excluding battery |
| Packaging Specifications | |
| Package Weight | 0.7 lb |
| Box Dimensions (L × W × H) | 6.4 × 4.65 × 4.5 in |
Compatibility
| Interchangeable Mount | Yes (Canon Hot Shoe) |
| Mount Type | Canon Hot Shoe (E-TTL II Radio) |
| Wireless Transmission | 2.4 GHz Radio Frequency (no line-of-sight required) |
| Maximum Range | Up to 30 m (98.4 ft) |
| Maximum Groups & Flashguns | 3 Groups (Up to 15 flashguns) |
Compatible Camera Models
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Compatible Flash Units & Accessories
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Features
- 2-Way Radio Wireless Transmission: Ensure reliable control of your flashes without the limitations of line-of-sight, enabling complex lighting setups to be managed effortlessly up to 98.4' away.
- Control Up to 5 Groups or 15 Individual Speedlites: Seamlessly organize multi-flash shoots, giving you creative flexibility to shape and layer light precisely how you envision.
- 360° Transmission Angle: Offers full directional coverage so you can position your flash units anywhere around the subject without worrying about dropouts.
- E-TTL II, Manual, Stroboscopic & Auto External Flash Metering Support: Provides versatile metering options to achieve perfect exposure in any shooting scenario, from fast-paced events to creative stroboscopic effects.
- Dot Matrix LCD Information Panel: Displays all pertinent settings at a glance, allowing quick adjustments even in challenging lighting conditions.
- Backlit Control Buttons: Facilitates operation in low-light or dark environments, so you never miss a shot due to poor visibility of controls.
- Compact & Robust Construction: Designed to withstand the rigors of professional use while remaining small enough to travel with ease.
- 8 Custom Functions & 3 Personal Functions: Tailor the transmitter’s behavior to your precise workflow, speeding up your setup and ensuring consistency.
- Improved Hot Shoe Contacts: Delivers secure, high-speed communication between the transmitter and camera for fail-safe triggering.
- Slave Operation Confirmation LEDs: Instantly identify connection status and troubleshoot misfires with intuitive color-coded indicators.
Applications
- Event Photography: Seamlessly trigger multiple off-camera Speedlites up to 30 meters away for weddings, conferences, and live performances without line-of-sight constraints.
- Studio Lighting Control: Manage complex multi-flash setups in professional studios - assign groups (A/B/C), adjust power levels remotely, and synchronize high-speed flash with fast shutter speeds.
- Portrait & Fashion Shoots: Achieve precise lighting ratios and creative fill light patterns for editorial and portrait sessions, with reliable E-TTL metering and consistent exposures.
- Outdoor & Location Shoots: Benefit from robust 2.4 GHz radio transmission in bright sunlight or around obstacles - ideal for location portraiture, engagement sessions, and travel photography.
- High-Speed Sync Applications: Capture crisp action shots or balance ambient light in bright conditions by enabling high-speed sync (up to 1/8000 s) across multiple Speedlites.
- Macro & Product Photography: Precisely position and fire off-camera flash units for shadow-free close-up shots of products, jewelry, and still life compositions.
- Creative Lighting Experiments: Explore off-camera flash techniques - light painting, stroboscopic effects, and mixed ambient/flash lighting - to add depth and drama to your images.
- Travel & Outdoor Enthusiasts: Lightweight and battery-powered for on-the-go setups - perfect for landscape photographers wanting fill-flash in remote locations.
- Content Creators & Videographers: Integrate off-camera flash into video interviews or storytelling vlogs for consistent, studio-quality lighting in dynamic environments.
Customer Highlights
- Reliable Wireless Performance: Users praise the ST-E3-RT for its stable radio transmission and consistent trigger response even in challenging environments.
- Long-Range Control: Photographers appreciate the extended wireless range, enabling off-camera flash setups up to 30 meters without line-of-sight constraints.
- Easy Setup & Intuitive Controls: Reviewers highlight the clear LCD interface and straightforward menu navigation, streamlining the configuration of groups, channels, and flash parameters.
- Seamless Canon Speedlite Integration: Users note flawless compatibility with Canon RT-series Speedlites (600EX II-RT, 430EX III-RT), allowing full E-TTL II functionality and advanced features like FE lock.
- Robust Build Quality: Owners commend the solid construction and durable materials, which withstand frequent on-location and studio use.
- Efficient Power Usage: Many users appreciate the extended battery life, powering numerous flash releases on a single set of AA batteries.
- Enhanced Creative Control: Photographers love grouping multiple flashes and adjusting output ratios remotely, unlocking complex lighting setups with ease.
- Firmware Upgradable: Some users value the ability to update firmware via Canon’s service, ensuring ongoing compatibility and feature improvements.
- Professional Results: Reviewers mention how the ST-E3-RT elevates off-camera lighting capabilities, delivering consistent, high-quality results for events, portraits, and creative shoots.
Make It Yours
Experience the award-winning Canon ST-E3-RT Speedlite Transmitter - praised by top professionals for rock-solid reliability and flawless wireless flash control. Limited stock is available at this exclusive moment; secure yours now and elevate your lighting setup instantly. Add to cart today before it’s gone!
