$ 349.99 $ 284.99
Canon SKU: 5743B002 | Helix SKU: CA5743B002
For sophisticated wireless flash setups, there's nothing like the new Speedlite Transmitter ST-E3-RT*. Facilitating radio controlled, two-way wireless transmission up to 98.4 feet, among up to five groups or fifteen individual Speedlites, the ST-E3-RT represents the next generation in wireless flash systems. With operational controls similar to the new Speedlite 600EX-RT, including diverse flash metering options, and a number of flash modes, the Speedlite Transmitter ST-E3-RT makes complex lighting setups simple. With a compact design and highly reliable construction, combined with a clearly laid-out information panel and buttons with back lighting and more, the Speedlite Transmitter ST-E3-RT is an indispensable tool for advanced, professional flash photography.
*Because it does not have an optical transmission function, the Speedlite Transmitter ST-E3-RT is not compatible with earlier Speedlite models such as 580EX II.
Godox SKU: X1C | Helix SKU: GXX1C
Godox first TTL wireless flash trigger X1C applies to Canon EOS series cameras. Featuring multi-channel triggering, stable signal transmission, and sensitive reaction, it can be used to trigger camera shutter, studio flash and camera flash. X1C is compatible with market-available cameras which support E-TTL II.
Built-in 2.4G wireless transmission provides 100 meter transmission distance and creative triggering methods.
Support for E-TTl II autoflash, 1/1800s High-speed sync, flash exposure compensation, flash exposure lock, modeling flash, etc.
With GR group flash and wireless grouping system (max. 5 groups & 32 channels) and triggering the flash.
Transmitter and receiver both have back-lit LCD panel to offer convenient operation.
Versatile functions such as synchronization delay setting, wireless shutter release, zoom setting, etc.
PC sync socket to input and output; receiver uses 2.5mm sync cable to output.
USB firmware upgrades will help keep pace with the latest technology.
Useful memory function that will keep settings stored for 2 seconds after the last operation and recover after a restart.
ProMaster SKU: 4667 | Helix SKU: PR4667
+ Multiple Channels
+ HSS high-speed sync: TTL 1/8000
+ 325’ range
+ Functions as a transmitter or receiver
+ AF assist beam
+ Also works as a wireless shutter release (with additional cable)
+ USB fireware upgradable
+ Stand included
- 2.4GHz operating frequency
- Manual output setting: 1/1 - 1/128
- Master/Slave Mode
- Net Weight: 3.5oz / 98g (without batteries)
- Dimensions: 3 1/6” x 2 9/16” x 2 7/16” (77.8mm x 65mm x 62mm)
- Power Source: 2 x 1.5V AA alkaline batteries, 2 x 1.2V NiMh batteries
The following cables are available to expand the capabilities of the ST1
- ProMaster 6368 camera triggering cable for Nikon MC30 port
- ProMaster 6375 camera triggering cable for Nikon MCDC2 port
- ProMaster 6382 camera triggering cable for Canon RS80 port
- ProMaster 6389 camera triggering cable for Canon RS60 port
- ProMaster 3717 USB firmware downloading cable for computer connection
ProMaster SKU: 6866 | Helix SKU: PR6866
Availability of some features is camera-model dependent
Weights & dimensions do not include batteries or cords.
ProMaster 5398 USB firmware downloading cable for computer connection. USB micro-B.