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

List Price: $470.00

Protect Your Investment:

Add a Protection Plan
  • Add a protection plan
  • New Leaf 3 Year Extended Warranty + $39.95
  • New Leaf 3 Year Drops & Spills Extra Protection + $54.95
44% Off

Our Price

$263.20
Buy more and save
Quantity Discount
QuantityAmount

The quantity discount will be reflected in your shopping cart

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

Summary of Customer Reviews

Customers most agreed on the following attributes:
Pros:
Lightweight (13),Reliable (13),Easy to use (11),Packs small / compresses (5),Durable (4),Strong construction (4),Superior build quality (4),Quiet (3)
Best Uses:
Portraits (7),Family photos (6),Studio (6),Weddings (6),Travel (5),Sports/action (4),Everyday (3)
Reviewer Profile:
Pro photographer (5),Photo enthusiast (3)

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)

Canon ST-E3-RT Reviews

Review Snapshot®

 
4.2

(based on 24 reviews)

87%

of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars

     

    (15)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (4)

  • 2 Stars

     

    (0)

  • 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

 

So close

Canon had a winner with the older ST-E2 but is a bit short with the new radio transmitter ST-E2-RT. The omission of the focus assist light is major. My Canon 5D Mark II and Mark III cameras can focus well in daylight, but a dark room it is a challenge. The cameras just miss too much without a focus assist light. Canon omitted this feature and any other maker of radio transmitters also has no assist. So Canon has a great radio tool that may not deliver focus. As well it would have been better ...

View full Review

Canon had a winner with the older ST-E2 but is a bit short with the new radio transmitter ST-E2-RT. The omission of the focus assist light is major. My Canon 5D Mark II and Mark III cameras can focus well in daylight, but a dark room it is a challenge. The cameras just miss too much without a focus assist light. Canon omitted this feature and any other maker of radio transmitters also has no assist. So Canon has a great radio tool that may not deliver focus. As well it would have been better if we could integrate the ST-E3-RT with existing radio products. We have owned other radios for over 15 years. Some older receivers are built in our studio strobes. But the Canon will not talk to the current studio equipment. It is unfortunate that the Canon product has been priced at level higher than we've paid for radios with no cross communication. And no focus assist at this escalated price. Canon acts like they invented radio transmitting, but really we've been fighting line of site for a decade. We bought the new 600 flash system, but it really talks about Canon not understanding the studio photographer's big picture.

Reviewed by 24 customers

 
5.0

It just works!

By

from Portland, OR

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

from Chicago, IL  -  Pro Photographer

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

from San Luis Obispo

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

from colorado  -  Photo Enthusiast

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

from Florida  -  Pro Photographer

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

from Pittsburgh Pa.

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

from Chicago, IL  -  Semi-pro Photographer

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

 
5.0

Great Speedlite Accessory

By

from Acton, CA  -  Photo Enthusiast

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.

(0 of 1 customers found this review helpful)

 
1.0

Big disappointment. No AF assist beam.

By

from Annandale, VA  -  Pro Photographer

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.

(1 of 1 customers found this review helpful)

 
1.0

Where's the AF assist beam?

By

from Northern VA

Everything works great except No AF Assist Beam. Need that beam, put that in asap. The main flash 600EX-RT must be mounted on the camera at all time at night time, so what's the point of buying this ST-E3-RT then?

Q&A

Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  If I buy a speed lite 430 II do I have to buy the transmitter ST-E3-rt also for remote shooting?
M PHILLIP K  You will not need the ST-E3-RT. Flashes previous to the 600EX-RT are controlled optically only.
Hernan C  I want to set my speedlites 600-EX-RTs with a sekonic litemasterpro l-478DR and I do not want the canon speedlite transmitter st-e3-rt to change my flash settings once I st them through the meter. How can I set the ST-E3-RT to stay in radio trigger mode only?
M PHILLIP K  Hello, I'm not sure whether you have received a response or solution to your question, but I am responding just in case you still need information. To my knowledge, the ST-E3-RT is not something that can serve by itself as a "trigger only". When you want to trigger remotely, use 600EX-RT as a slave unit transmit the relese command to the ST-E3-RT (which will be attached to the hotshoe). See p. 42 in the ST-E3-RT manual, and also p. 68 in the 600EX-RT manual. Hope this helps.
KEITH M  will this st-e3-rt work with the 580 speed lights ?
SAM C  The st-e3-rt is a radio trigger. There is no optical option to trigger the 580's. The 600 flashes can optically trigger any older canon flash.
See more questions and answers

Related Articles & Videos

Six Days of Speedlite Tips - in one post

 While back I ran a series here on my blog, Six Days of Speedlite Tips.For all those photographer who received a new speedlite as a holiday gift, I put all six days of tips into one post. It's like a mini course on speedlite photography. For hands-on speedlite training, join one of Read More

top
Share this item:
Adorama.com is top rated for customer serviceHACKER SAFE certified sites prevent over 99.9% of hacker crime.