Used Canon ST-E3-RT Speedlite Transmitter

• Auto Exposure Control
  E-TTL II / E-TTL
• High Speed Sync (FP)
  Yes
• Manual / Output Settings
  Yes - 1/1- 1/128
• Manual Steps
  1/3 step
• Strobe / Output Settings
  Yes - 1/4-1/128
• Stroboscopic Frequency
  1-500Hz

Flash-Related Function

• FE Lock
  Yes
• FE Memory
  No
• Flash Exposure Compensation
  Yes
• Flash Exposure Bracketing
  Yes
• Second-Curtain Flash Sync
  No
• Modelling Flash
  Yes

Wireless Flash

• Transmitter
  Yes
• Transmission Type
  Radio
• Transmitter Range
  Indoors: 30m
  Outdoors: 30m
• Receiver
  No
• Number of Groups
  5 - A,B,C,D or E
• Number of Channels
  15
• Remote Shutter Release
  Yes

AF Assist

• AF-Assist Beam
  No
• Number of AF Points Supported
  -
• AF-Assist Beam Type
  -

Power Source

• Battery
  2 x AA batteries
• Minimum Recycling Time
  N/A
• External Power Supply
  No

Construction

• Dust and Water Resistance
  Yes
• Mounting Foot Material
  Metal

Miscellaneous

• Custom Function
  8 (3 personal functions)
• Flash Settings from Camera Menus
  Yes
• External Flash Exposure Sensor
  No
• PC Terminal
  No
• Accessories (Included)
  Soft case
• Accessories (Optional)
  Off-Camera Shoe Cord OC-E3, Release Cable SR-N3
• Compatible Speedlites
  EL-1, 600EX II-RT, 600EX-RT, 430EX III-RT

Physical Specifications

• Dimensions (W x H x D)
  67.4 x 61.5 x 77.4
• Weight
  110g

• Canon transmitter
• Box