Canon Speedlite Transmitter ST-E3-RT Specifications

SpecificationsCanon Speedlite Transmitter ST-E3-RT
  Canon Speedlite Transmitter ST-E3-RT
Power: Guide No (ISO 100)
Angle of Flash Coverage  
With Diffuser
AF Assist Beam  
AF Assist Beam Type N/A
AF Assist Beam Points
AF Assist Beam Min Focal Length
AF Assist Beam Range – Center
AF Assist Beam Range – Periphery
Flash Exposure Modes  
Auto Exposure Standards Supported E-TTL II/E-TTL
External Auto Flash Exposure Sensor N
Manual Flash Exposure Y
Features Controllable from Flash  
High Speed Sync Y
Flash Exposure Lock (FEL)
Flash Exposure Compensation (FEC) Y
Flash Exposure Bracketing (FEB) Y
Second Curtain Flash Sync N
Modelling Flash Y
Color Temperature Info Communication N
Supports Flash Settings by Camera Menu
(Enables many options not available directly on the flash)
Custom Functions 8
Personal Functions 3
Wireless Flash Capabilities  
Wireless Flash Transmitter Capability Y
Wireless Transmission Type Radio
Transmitter Max Range – Indoors 98.4' (30m)
Transmitter Max Range – Outdoors 98.4' (30m)
Wireless Flash Slave Capability
Wireless Flash Groups 5
Wireless Flash Channels 15
Remote Shutter Release Capability Y
Flash Head Movement Range  
Flash Head Movement Up Fixed
Flash Head Movement Down
Flash Head Movement Left
Flash Head Movement Right
Flash Features  
Dust and Water Resistance Y
PC Terminal N
Power Source  
Power Source 2x AA
Number of Flashes (approx)
Recycling Time – NiMH (approx)
Recycling Time – Alkaline (approx)
External Power Source
Size (WxHxD) 2.65 x 2.42 x 3.05"
(67.4 x 61.5 x 77.4mm)

Weight 3.9 oz (110g)
Compatible Accessories
Dedicated Flash Bracket
Compatible Cameras All Canon EOS cameras
PowerShot G series cameras
Review Canon Speedlite Transmitter ST-E3-RT
  Buy  ►  I highly recommend B&H Photo – Shopping here supports this site!
  Rent  ►
Share on Facebook! Share on Twitter! Share on Pinterest! Email this page to a friend!
Free Newsletter ►
Bryan Recommends Buying It Here
Any purchase made after using this link provides support for this site Any purchase made after using this link provides support for this siteAs an Amazon Associate, I earn from qualifying purchases.
Any purchase made after using this link provides support for this site
TOU  |  © 2023 Rectangular Media, LLC  |  Bryan CarnathanPowered by Christ!