Canon
Canon ST-E3-RT: Picture 1 thumbnail Canon ST-E3-RT: Picture 2 thumbnail Canon ST-E3-RT: Picture 3 thumbnail Canon ST-E3-RT: Picture 4 thumbnail

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Canon Speedlite Transmitter ST-E3-RT - With USA Warranty

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$263.20
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List Price: $470.00

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Product Highlights

  • Triggers one to 15 Speedlite 600EX-RT units forradio-based Wireless E-TTL
  • Compatible for E-TTL automatic wireless flash with nearly all EOS Digital SLRs*
  • E-TTL
  • Revolutionary new "Group" mode
  • Infrared Slave
  • Transmitter
Canon ST-E3-RT: Picture 1 regular $263.20

About Canon ST-E3-RT

Canon Speedlite Transmitter ST-E3-RT is compact in size but with strong capabilities which make it almost a must-have for Speedlite 600EX-RT owners.

With the same radio-based wireless transmission abilities as a "master" 600EX-RT unit, it frees a Speedlite up for use off-camera, and can control up to fifteen flashes up to 98.4 feet (30m) off-camera and that's over a full 360° range. The Canon ST-E3-RT has thes ame advanced LCD panel and control as the 600EX-RT, and is powered by two AA-size batteries. Unlike the Speedlite Transmitter ST-E2, the ST-E3-RT is not compatible with the existing optical-type wireless flash system, and it does not have a built-in AF-assist beam.

The Canon ST-E3-RT is commonly used for Family photos, Portraits, Sports/action, Studio, Travel, Weddings and more.The Canon ST-E3-RT is most used by customers who consider themselves to be a Pro photographer among others.The Canon ST-E3-RT is popular because customers like the following qualities of the Canon ST-E3-RT: Durable, Easy to use, Lightweight, Packs small / compresses, Reliable, Strong construction and Superior build quality

Canon ST-E3-RT Features

  • Lightweight and affordable way to trigger one to 15 Speedlite 600EX-RT units forradio-based Wireless E-TTL
  • Compatible for E-TTL automatic wireless flash with nearly all EOS Digital SLRs*,with all units firing at even power, or choice of A:B or A:B C flash ratios between groups of speedlites
  • E-TTL, Manual flash, or Multi-mode manual flash possible with nearly all EOS Digital SLRs*
    * Original EOS-1D and EOS-1Ds are not compatible with Canon's radio-based wireless flash for automatic E-TTL exposure; Manual or Multi-mode flash only
  • Revolutionary new "Group" mode with EOS 5D Mark III and EOS-1D X bodies independent control of up to five groups of off-camera Speedlite 600EX-RT units
  • Original EOS-1D and EOS-1Ds are not compatible with Canon's radio-based wirelessflash for automatic E-TTL exposure; Manual or Multi-mode flash only

Canon ST-E3-RT Specifications

Type
Radio transmissions wireless Speedlite transmitter
Compatible Cameras
Type A EOS cameras (E-TTL II/E-TTL autoflash)
Sync Speed
High-Speed Sync provided (EOS-1D X and EOS 5D Mark III only)
Flash Exposure Confirmation
Flash exposure confirmation lamp lights in green
If it does not light, shooting is not performed with the standard exposure
AF Assist Beam
N/A
Transmission System
Radio Transmission
Transmission Range
Approx. 98.4 ft. (30m)
Flash Ratio Control
1:8 - 1:1 - 8:1, power 1/2-stop increments
Flash Coverage
Transmission Angle: 360° all around
Slave Operation Confirmation
Green Light
Lit: Radio Transmissions Okay

Red Light
Lit: Not Connected
Blinking: Transmission Error/ Too many units (Master units + slave
units = more than 16 units)

Orange Light
Lit: Sub-master transmission
Blinking: Receiving remote release shooting, linked shooting signal
Slave Unit SE Mode Cancellation
The test flash button can be pressed to test if the slave units fire or cancel the auto power off status.
Power Source
AA/LRG Alkaline Batteries x2 (Ni-MH and Lithium batteries can also be used)
Battery Life
Battery Life: Approx. 10 hours continuously *When using AA/LR6 alkaline batteries used (At a room temperature +23°C/73°F).
SE Mode
Power off after 5 min. of idle operation
Dimensions (WxHxD)
2.7 x 2.4 x 3.1" (67.4 x 61.5 x 77.4mm)
Weight
3.9 oz (110g)
Mfr #
5743B002
SKU
CASTE3

Canon ST-E3-RT Reviews Powered by TurnTo®

Review Snapshot®

 
4.1

(based on 25 reviews)

Ratings Distribution

  • 5 Stars

     

    (15)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (4)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

Most Liked Positive Review

 

State of the art finally arrived!!

Right out of the box, it performed exceptionally well. This is a long over due product that filled a gap that was provided by third party manufacturers, that tried to please everyone. This transmitter excels in the following points: 1-Controls the speedlites in both ETTL and M modes. 2-Controlls multiple flash groups, which opens the possibilities to infinite amount of combinations. 3-Eliminates the need to touch the remote flashes. 4-The most amazing mode of all is the stroboscopic, with mul...

View full Review

Right out of the box, it performed exceptionally well. This is a long over due product that filled a gap that was provided by third party manufacturers, that tried to please everyone. This transmitter excels in the following points: 1-Controls the speedlites in both ETTL and M modes. 2-Controlls multiple flash groups, which opens the possibilities to infinite amount of combinations. 3-Eliminates the need to touch the remote flashes. 4-The most amazing mode of all is the stroboscopic, with multiple flashes on different group ratios. 5-Easy menu, with beautifully back-lit multi-function LCD, is located right on the top. The Only Drawback is: It doesn't have built-in HOTSHOE! that was a mini blunder! but i could live with that. Enjoy shooting, and shoot hard!

VS

Most Liked Negative Review

 

Wireless Flash Transmitter

Ok, I love wireless transmitters, this one works very well with 100% firing capability. I just got this along with 2 new 600ex flash units. Be prepared to read the manuals and do lots of testing, there are lots of options to learn, this system has both wireless triggering and optical triggering. I'll most likely use the wireless feature. I used the system for both a commercial shoot and one wedding now. In the commercial setting, I had the freedom to test and make adjustments without much p...

View full Review

Ok, I love wireless transmitters, this one works very well with 100% firing capability. I just got this along with 2 new 600ex flash units. Be prepared to read the manuals and do lots of testing, there are lots of options to learn, this system has both wireless triggering and optical triggering. I'll most likely use the wireless feature. I used the system for both a commercial shoot and one wedding now. In the commercial setting, I had the freedom to test and make adjustments without much pressure to make quick changes, but for the wedding, you have to work fast and don't have time to make significant adjustments. I shoot a lot in manual mode, and set each flash to give me dramatic light. ETTL is great for portraits, but at a wedding, well ETTL is a bit dull or soft for my style. But I love to mix both when the situation calls for it. My next shoot is an editorial shoot in Mexico, so that should really be fun and give me lots of creative options. My disappointment with the transmitter is the lack of AF Assist beam. In low, low, low light, it is a requirement. I had to use my iPhone flashlight APP recently as a focus light, that was a pain. What was Canon thinking? My other disappointment is the lack of using the 5D II on camera menu to control the flash system. It's so nice to hit your camera menu and make quick adjustments on a menu that's lit up and easy to see. I guess the new transmitter and flash units were designed for the new 5D III, but I still have older models that I really don't want to retire. Some operation notes: any manual setting changes you make remotely do not take effect until you do a test shot, so don't expect immediate remote changes. I also noticed the new flash units are very strong/bright, so a 1/8 power setting that I like before packs a punch, a 1/16 setting was very nice too. And for the new gel holders, ill probably break those, not very good quality, I just attach my gels with a rubber band around the flash head, if you cut your gels long, they fit nicely, and if I cut a long strip, I can double or triple my gels to make stronger corrections. Anyway, I'm looking for a new upgraded ST-E3-RT with a beam assist hat can be turned off or on!

Reviewed by 25 customers

 
2.0

Lack of Focus Assist is deal breaker

By

I was hoping to use this instead of the flimsy, unreliable cable connection when using a flash bracket. I also was hoping to use it to aid in fill flash for some outdoor sports, taking advantage of the long range so the flash unit could be located closer to the action. Unfortunately, this won't work for replacing the cable for flash bracket use. I may buy the next version if Canon fixes this error. When I do studio work, I use Novatrons or I use my 600EX-RTs set on manual and connected to my old pocket wizards.

 
5.0

It just works!

By

My Speedlite Transmitter simply works and works so well. I'm new to Speedlites and jumped in and purchased this and three 600EX-RT's and am loving the radio function. Controlling all three flashes from the unit over great distances or hard to reach locations is a dream. Having this capability allows my creativity to not get bogged down with inadequate gear. Thanks Canon!

(1 of 1 customers found this review helpful)

 
3.0

Well designed, but...

By

As some other reviewers have pointed out this trigger lacks AF assist beam. In low light situation it's a must during events. The previous version had it, and for some reason this one doesn't. Another problem is the inability to control the zoom on the flash unit -- this would be very useful at receptions. Once the flash heads are on stands and you find out you need to adjust the zoom of one or more flashes; well you have to go to that stand, bring it down, change it manually, bring it up again, etc. It's just a hassle, I hoped that this trigger would have that. On a positive note the unit has menus that closely follow what you'll find on your 600EX-RT, and it finally uses standard 2x AA batteries.

(1 of 1 customers found this review helpful)

 
3.0

Great radio, when there's ambient light

By

I used the ST-E3-RT with 3 600EX-RT flashes for a wedding reception and loved the ease of the system and the results -- that is, when I could focus. There is no focus assist beam when the radio trigger is on-camera, so as soon as it gets dark, focus performance diminishes significantly. You then have to mount one of the flashes on-camera to get improved focus, which defeats the whole purpose of off camera flash. So, the radio system works best when you're trying to create some fill in good-to-average light situations. Once it gets dark and you want to use the system to create off camera light, you're out of luck.

 
5.0

Great product but need a newer camera

By

This is a great tool combined with 600EX-RTs. This surely makes flash photography more fun. Unfortunately it requires 2012 or newer cameras to work some of the features. Now 5DIII is on my wish list.

 
4.0

Works as advertised!

By

Sweet--Canon quality and user friendly. Knocked off a star because it lacks AF illuminator and Group mode for pre-2012 cameras (features that Yongnuo included in their knock-off version).

 
4.0

90 % perfect

By

This is a product I have wanted for a long time, and it works very well, but...... It should articulate like the flashes do, meaning go from the flat position that is currently to a screen up, vertical position so it can be read when the camera is at an eye level position on a tripod. I would like to see this change made in a new product. Very frustrating to have to either remove it from camera or remove whole camera from tripod to change settings, or carry a small ladder to be able to see the screen while it is mounted to a tripod. Just my 2 cents. I own a lot of canon gear including four (4) 600 ex rt speedlights which I love. Make this product go from good to GREAT! You can do it.....

 
5.0

I am glad I purchased this product.

By

I like the ability to change the settings from my camera .

 
5.0

Great Speedlite Accessory

By

This transmitter is a great accessory to go along with your Canon 600EX-RT speedlite. If you understand the speedlite then you will not have problems with this unit because it has the same controls and display as the 600EX. The big benefit to this unit is the fact that it operates on 'radio frequency' and does not require a direct line of sight for an IR beam. Also, this unit can control up to 15 individual 600EX speedlites directly from your camera. As with all Canon units, the manual that comes with it is vague and unclear but you can find help on Youtube, etc.

(1 of 1 customers found this review helpful)

 
1.0

Big disappointment. No AF assist beam.

By

Not having the AF assist beam makes this ST-E3-RT useless for me. I have to use a flash light to focus. It's not designed to be used at night time. I would rather return this to get another 600EX-RT.

Q&A

Questions & Answers Powered by TurnTo®

Questions about this item:

KEITH M  will this st-e3-rt work with the 580 speed lights ?
JOSEPH N  It is working with canon 5d iii or higher model as 1Dx....and canon 600 flash only. Joseph Nguyen
KEITH M  thank you.
KEITH K  can you use this system to take a reading from a handheld light meter. Like a Sekonic L-358?
CREATIVE LIGHT M  Yes you can, If you use it for manual flash. There is no pre-flash to mess with the light meter. Don't use ETTL flash. You can't use it with the light meter's built in radio trigger because it uses pocketwizards radio signals, not canon's. Other than that it works fine.
KEITH K  Thanks, I have one and would like to use the light meter. How do you do it. Are you having the subject hold the meter and you press the test fire? Can you fire it through the light meter?
KEITH K  can you use this system to take a reading from a handheld light meter. Like a Sekonic L-358?
CREATIVE LIGHT M  Yes you can, If you use it for manual flash. There is no pre-flash to mess with the light meter. Don't use ETTL flash. You can't use it with the light meter's built in radio trigger because it uses pocketwizards radio signals, not canon's. Other than that it works fine.
KEITH K  Thanks, I have one and would like to use the light meter. How do you do it. Are you having the subject hold the meter and you press the test fire? Can you fire it through the light meter?
See more questions and answers

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