Canon Speedlite Transmitter ST-E3-RT
Canon Speedlite Transmitter ST-E3 -Maximum radio transmission distance of 30m in all direction and controls up to 5 groups and 15 slave units
Features Highlight
- Compact Radio transmission wireless flash master control
- Supports E-TTL II / E-TTL autoflash, Auto External Flash Metering, Manual Flash and Stroboscopic Flash
- 15-channels in 2.4GHz frequency with 10000 radio transmission ID to avoid interference
- Maximum radio transmission distance of 30m in all direction and controls up to 5 groups*1and 15 slave units
- Supports 2-way communication between master and slave units; allow transmission of slave units' status and operation from slave units
- Supports Linked shooting*2 and remote release function*2
- Dot-Matrix LCD panel to display more flash settings information
- Speedlite control with EOS Digital SLR Camera's menu*3
- High Strength Metal mounting foot
- Improved quick locking mechanism with “dust wipe mechanism” and “variable contact pressure” design
- Implements 2-line transmission for important signals transmission
- Dust and water resistance# equivalent to EOS-1D Series cameras
*1: Applicable to EOS Digital SLR cameras released from 2012 and onwards
*2: 600EX-RT or ST-E3-RT must be attached. For EOS Digital SLR cameras with N3-type remote control terminals released before 2012, Speedlite Release Cable SR-N3(Optional) is required
*3: Applicable to EOS Digital SLR cameras released from 2007 and onwards
# Not recommended to use in the rain
Detailed specifications of the Canon Speedlite Transmitter ST-E3 | |
| Type | |
| Type | On-camera Speedlite Transmitter |
| Compatible cameras | EOS type-A camera compatible with E-TTL II/E-TTL autoflash |
| Radio Transmission Wireless Function | |
| Exposure control type | E-TTL II/E-TTL autoflash, manual flash, stroboscopic flash, auto external flash metering*1 |
| Standard | IEEE802.15.4, ARIB STD-T66 |
| Frequency | 2405 - 2475 MHz |
| Modulation system | Primary modulation: OQPSK, secondary modulation: DS-SS |
| Channel | Auto, Ch. 1 - 15 |
| Wireless radio ID | 0000 - 9999 |
| Slave unit control | Up to 5 groups*2 (A/B/C/D/E), up to 15 units |
| Transmission distance (Approx.) | 30m |
| * When there are no obstacles or obstructions between the master unit and slave unit, and no radio interference with other devices | |
| * The transmission distance may be shorter depending on the relative positions of the units, surrounding environment and weather conditions | |
| Flash ratio control | 8:1-1:1-1:8 in ½-stop increments (A:B) |
| Flash exposure compensation | ±3 stops in 1/3- or 1/2-stop increments |
| FEB | ±3 stops in 1/3- or 1/2-stop increments (when used with flash exposure compensation) |
| FE lock | Press the camera’s <M-Fn>, <FEL> or <*> button |
| High-speed sync | Provided *2 |
| Manual flash | 1/128 - 1/1 power (1/3-stop increments) |
| Stroboscopic flash | Provided (1 - 500 Hz) |
| Slave-ready indicator | The flash icon lights on the master unit’s LCD panel, slave unit’s AF-assist beam emitter blinks, flash-ready lamp lights |
| Flash exposure confirmation | Flash exposure confirmation lamp lights |
| Shutter speed limitation | No *2 (However, for camera that released before 2012, the maximum shutter sync speed must be set one-step slower) |
| Modeling flash | Fired with camera’s depth-of-field preview button |
| Remote release function | Provided*3 |
| Linked shooting | Provided*3 |
| Power Source | |
| Internal power source | Two size-AA Alkaline/Ni-MH/lithium batteries |
| Radio transmission wireless shooting time | Approx. 10 continuous hours |
| (when using size- AA alkaline batteries) | |
| Power saving | Power off after 5 min.of idle operation |
| General | |
| Custom Function | 8 (19 settings) |
| Personal Function | 3 (5 settings)) |
| Camera-controlled Speedlite Transmitter | Supported *4 |
| Dust and water-resistance | Yes (with EOS-1D series camera) |
| Dimensions (W x H x D)(mm) | 67.4 x 61.5 x 77.4 |
| (excluding the dust- and water-resistant adapter) | |
| Weight (without batteries) (g) | 110g |
| *1 Only available in the Group firing mode and applicable to EOS Digital SLR cameras released from 2007 and onwards | |
| *2 Applicable to EOS Digital SLR cameras released from 2012 and onwards | |
| *3 600EX-RT or ST-E3-RT must be attached on camera. For EOS Digital SLR cameras with N3-type remote control terminals released before 2012, Speedlite Release Cable SR-N3 (Optional) is required | |
| *4 Applicable to EOS Digital SLR cameras released from 2007 and onwards | |
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