The Professional's Source 866.276.1435 / 212.502.6357

Holiday Closing

We are not accepting orders at this time. Online ordering will resume Monday, May 28th at 9:45PM EDT. Our SuperStore and offices are currently closed and will reopen on Tuesday, May 29th at 9:00AM EDT.
We apologize for any inconvenience and appreciate your patronage.

Please note: Online ordering is unavailable until Monday 9:45 PM EDT. Feel free to browse our site and add items to your cart or wishlist. We apologize for the inconvenience and appreciate your patronage.

Canon ST-E2 Speedlite Transmitter

  • Price: $224.95
  • B&H # CASTE2
  • Mfr# 2478A002

Product Highlights

  • Clip-on Wireless Auto Flash Transmitter
  • Sets and Controls Flash Ratios
  • E-TTLE-TTL II Compatible
  • E-TTL Wireless Autoflash Control
  • Built-In AF Assist Beam
  • High-Speed FP Flash
  • Powered by 2CR5 Lithium (6V) Battery

Protect Your Purchase

 

What item is right for you?

Ask our Experts!

866.276.1435
Live Chat

The Canon ST-E2 Speedlite Transmitter is a dedicated E-TTL (II) wireless autoflash transmitter that can control an unlimited number of flashes with Canon Speedlites 420EX, 430EX, 430EXII, 550EX, 580EX and 580EX II, in two separate groups; A and B.

The ST-E2 sets and controls all functions of its slave units. The flash output ratio between groups A and B can also be adjusted from 8:1 to 1:1 or from 1:1 to 1:8.

Under low-light or low-contrast conditions it emits an AF-assist beam linked to the camera's focusing points.

Note: 420EX/430EX cannot be used as the master slave to trigger other flashes.

Compatible Canon Speedlites 420EX, 430EX, 430EXII, 550EX, 580EX and 580EX II
Compatible Cameras: Type A EOS cameras (E- TTL, autoflash); type B EOS cameras (Manual flash). Compatible models include: EOS 1D Mark II N, EOS 20D, EOS-1Ds MARK II, PowerShot G3, PowerShot G5, PowerShot G6, PowerShot G7 and PowerShot G9
Flash Ratio Control: For A:B ratio: 1:8 to 8:1, in half- step increments or 13 steps
High- Speed Sync (FP flash): Enabled with high-speed sync mode
Slave Operation Confirmation: With test transmission button. *Slave A fires followed by slave B at 1/64 output
AF-assist Beam: Compatible with EOS-3's 45-point Area AF and 28mm and longer lens focal lengths
SE Feature: While the power switch is set to I or HOLD, the transmission turns off automatically after about 90 sec. of non-use
Transmission System Infrared pulse
Transmission Range Indoors: Approx. 39.4 - 49.2' (12-15 m)
Outdoors: Approx. 26.2-32.8' (8-10 m)
Transmission Coverage ±40° horizontal and ±30°vertical
Power Source 2CR5 lithium (6V) battery
Dimensions 2.4 x 2.0 x 3.1" (62 x 51 x 80mm) WxHxD
Weight 3.5 oz (100 g) [excluding battery]

REVIEW SNAPSHOT®

by PowerReviews
CanonST-E2 Speedlite Transmitter
 
4.4

(based on 196 reviews)

Ratings Distribution

  • 5 Stars

     

    (99)

  • 4 Stars

     

    (80)

  • 3 Stars

     

    (12)

  • 2 Stars

     

    (3)

  • 1 Stars

     

    (2)

95%

of respondents would recommend this to a friend.

Pros

  • Lightweight (152)
  • Easy to use (123)
  • Consistent output (71)
  • Fast recycling (56)
  • Versatile (46)

Cons

  • Weak output (6)
  • Poor quality (5)
  • Heavy / bulky (4)
  • Not interchangeable (3)

Best Uses

  • Fill flash (92)
  • Portraits (92)
  • General purpose (70)
  • Night photography (49)
  • Lighting (38)
    • Was this a gift?:
    • No (74), Yes (3)
    • Reviewer Profile:
    • Semi-pro photographer (55), Professional (34), Pro photographer (34), Enthusiast (32), Photo enthusiast (22)

Most Liked Positive Review

 

Perfect for off camera flash control!

I shoot many weddings and family portraits both inside and outside; I wanted a portable lighting system and needed transmitter that would allow me to control my 580EX and 580EX II Canon flashes off camera...Read complete review

I shoot many weddings and family portraits both inside and outside; I wanted a portable lighting system and needed transmitter that would allow me to control my 580EX and 580EX II Canon flashes off camera. The ST-E2 transmitter is the perfect addition to my setup. I am able to use both Canon flashes, set each flash to the light output ratio desired, and fire them with the ST-E2 Canon Transmitter. I shoot with a partner and we are able to separate our Canon flashes in group setups, shoot on the same grounds, and not interfere with each other's ability to capture the images. Can't get much better than that!! If you are looking for dependable transmitter to control an off camera flash system, then the dedicated E-TTL ST-E2 Canon Transmitter should be in your camera bag!

VS

Most Liked Negative Review

 

In a couple of words: it works.

I would give it a five except for two features
1. The power off resets the high shutter speed to 1/200th of a second, wwhich if you forget this (eas to...Read complete review

I would give it a five except for two features
1. The power off resets the high shutter speed to 1/200th of a second, wwhich if you forget this (eas to do), blows out the shot and it is often lost forever. You have to remember to hit the H>>> button so you can use a shutter speed higher than 200th/sec. I use ten to twenty times that.
2. The battery is not good for very many shots, no matter which one you buy. Sad.

Reviewed by 196 customers

Sort by

Displaying reviews 1-20

Back to top

Previous | Next »

 
4.0

Works well

By anouke

from Naugatuck, CT

About Me Pro Photographer

Verified Buyer

Pros

  • Easy To Use
  • Lightweight

Cons

    Best Uses

    • General Use
    • Night Photography
    • Portraits

    Comments about Canon ST-E2 Speedlite Transmitter:

    I am a dog photographer and use the ST-E2 with a few 580exII's. It works well and I have used it out to about 25 feet away from the flashes and they still fire.

    • Was this a gift?:
    • No

    Share this review

     
    5.0

    works great

    By shooter John

    from Denver

    About Me Pro Photographer

    Verified Buyer

    Pros

    • Consistent Output
    • Durable
    • Easy To Use
    • Fast Recycling
    • Lightweight

    Cons

      Best Uses

      • Fill Flash
      • Portraits

      Comments about Canon ST-E2 Speedlite Transmitter:

      This works great firing my 580 flashes for portraits

      • Was this a gift?:
      • No

      Share this review

       
      5.0

      Lightweight & Easy to Use

      By AKing

      from Elizabethtown, KY

      About Me Pro Photographer

      Verified Buyer

      Pros

      • Easy To Use
      • Lightweight

      Cons

        Best Uses

        • Fill Flash
        • General Use
        • Portraits

        Comments about Canon ST-E2 Speedlite Transmitter:

        I bought this to use with my Radio Poppers and off camera flash. The set up was very simple.

        • Was this a gift?:
        • No

        Share this review

         
        5.0

        Consistent

        By Young

        from Spokane, WA

        About Me Pro Photographer

        Verified Buyer

        Pros

        • Consistent Output
        • Easy To Use
        • Fast Recycling

        Cons

          Best Uses

          • Portraits

          Comments about Canon ST-E2 Speedlite Transmitter:

          I bought this as a replacement transmitter after I broke the one I owned already. I use it everyday for multi-flash work and it operates very consistently. It's easy to use and has a small profile on my camera, not changing the balance.

          • Was this a gift?:
          • No

          Share this review

           
          5.0

          Add some flexibility and save $200.00

          By FrankV

          from Muskegon, MI

          About Me Photo Enthusiast

          Verified Buyer

          Pros

          • Easy To Use
          • Versatile

          Cons

          • Bulky

          Best Uses

          • General Use
          • Portraits

          Comments about Canon ST-E2 Speedlite Transmitter:

          If you want to control a off camera flash and have a 5DII, you can buy a 580EX2 and set it up as a master. But what if you want two Flashes, Both off Camera? You can buy and extra 580 and have the flash output at zero, or buy the ST-E2.

          The ST-E2 is about 1/2 the cost of the 580, easy to use (Switches and buttons, so if you're allergic to Canon Menus this will be even easier for you) :-)

          Yes it you can only control 2 zones, not three. But, for most of us that's not a big deal. Added flexibility at 1/2 the price. That is a big deal

          • Was this a gift?:
          • No

          Share this review

          (1 of 1 customers found this review helpful)

           
          5.0

          Exactly what I needed

          By Photo2757

          from Oregon

          About Me Semi-pro Photographer

          Verified Buyer

          Pros

          • Consistent Output
          • Durable
          • Easy To Use
          • Fast Recycling
          • Lightweight
          • Powerful Output
          • Versatile

          Cons

            Best Uses

            • Fill Flash
            • General Use
            • Photojournalism
            • Portraits

            Comments about Canon ST-E2 Speedlite Transmitter:

            I bought the ST-E2 to use in conjunction with two Canon 430EXii Speedlites for group/team and individual shots of a club volleyball team with approximately 90 girls. After some practice at home and trying the various settings, the transmitter worked flawlessly with over 300 firings.

            • Was this a gift?:
            • No

            Share this review

             
            5.0

            i like it

            By steve7

            from michigan

            About Me Casual Photographer

            Verified Buyer

            Pros

            • Easy To Use

            Cons

              Best Uses

              • Fill Flash

              Comments about Canon ST-E2 Speedlite Transmitter:

              nice and easy to use

              • Was this a gift?:
              • No

              Share this review

               
              5.0

              Great value, outstanding kit

              By alejmr

              from Montreal, QC

              About Me Pro Photographer

              Verified Buyer

              Pros

              • Easy To Use
              • Lightweight
              • Versatile

              Cons

                Best Uses

                • Fill Flash
                • Portraits

                Comments about Canon ST-E2 Speedlite Transmitter:

                Got this as part of the kit along with 2 580 ex II flashes.. it is a must when doing on location photography.... it gives you full control on your flashes and most importantly, it will never let you down...

                • Was this a gift?:
                • No

                Share this review

                (1 of 1 customers found this review helpful)

                 
                5.0

                Works as advertised

                By dwiesley

                from San Diego, CA

                About Me Pro Photographer

                Verified Buyer

                Pros

                • Consistent Output
                • Durable
                • Easy To Use
                • Lightweight
                • Versatile

                Cons

                  Best Uses

                  • Fill Flash

                  Comments about Canon ST-E2 Speedlite Transmitter:

                  The ST-E2 unit allows my to use remote speedlights as slaves in different power settings without needing a long connection cord. The wirelss range of 17 ft in full sunlight is more than acceptable for my needs.

                  • Was this a gift?:
                  • No

                  Share this review

                   
                  5.0

                  Easy

                  By MaryPerry

                  from New Castle, PA

                  About Me Semi-pro Photographer

                  See all my reviews

                  Verified Buyer

                  Pros

                  • Consistent Output
                  • Durable
                  • Easy To Use
                  • Fast Recycling
                  • Lightweight
                  • Powerful Output
                  • Versatile

                  Cons

                    Best Uses

                    • General Use
                    • Night Photography
                    • Photojournalism
                    • Portraits

                    Comments about Canon ST-E2 Speedlite Transmitter:

                    This transmitter was much easier to use than I anticipated. Don't forget to buy the batteries. It's just what I was expecting. I now have a solution for portable off camera flash that didn't cost thousands of dollars and does a fantastic job. Shipping from B&H is fast and wonderful.

                    • Was this a gift?:
                    • No

                    Share this review

                     
                    5.0

                    excellent

                    By Grantland

                    from Plymouth, MN

                    About Me Semi-pro Photographer

                    Verified Buyer

                    Pros

                      Cons

                        Best Uses

                          Comments about Canon ST-E2 Speedlite Transmitter:

                          works great for off camera flash photography. easy to operate!

                          • Was this a gift?:
                          • No

                          Share this review

                           
                          5.0

                          easy

                          By blueyes

                          from Cloquet, MN

                          About Me Semi-pro Photographer

                          Verified Buyer

                          Pros

                          • Consistent Output
                          • Durable
                          • Easy To Use
                          • Fast Recycling
                          • Lightweight
                          • Powerful Output
                          • Versatile

                          Cons

                            Best Uses

                            • Fill Flash
                            • General Use
                            • Portraits

                            Comments about Canon ST-E2 Speedlite Transmitter:

                            I have used other photographers transmitter, this is my 1st and I love it! I bought it as other photographers highly recomended this product to me. I have used this product a few times and am very happy with it.

                            • Was this a gift?:
                            • No

                            Share this review

                             
                            5.0

                            Works superbly with my 430EXII

                            By JG

                            from quebec

                            About Me Photo Enthusiast

                            Verified Buyer

                            Pros

                            • Consistent Output
                            • Easy To Use
                            • Lightweight

                            Cons

                              Best Uses

                              • Fill Flash
                              • General Use

                              Comments about Canon ST-E2 Speedlite Transmitter:

                              I can control both my speelites with the same transmitter. I dont have the issue of the extension cable flipping my flash.

                              • Was this a gift?:
                              • No

                              Share this review

                               
                              4.0

                              Very useful accessory

                              By Orion Driver

                              from Phoenix

                              About Me Photo Enthusiast

                              Verified Buyer

                              Pros

                              • Easy To Use
                              • Lightweight

                              Cons

                                Best Uses

                                • Fill Flash
                                • General Use

                                Comments about Canon ST-E2 Speedlite Transmitter:

                                Works as advertised; makes lighting an overall scene very easy with the placement of a flash in one location when working a smaller area. Can't wait to get an additional slave for more creative lighting with my photographs.

                                • Was this a gift?:
                                • No

                                Share this review

                                (1 of 1 customers found this review helpful)

                                 
                                4.0

                                I'm liking the Canon ST-E2 a lot

                                By tsehgal

                                from San Jose, CA

                                About Me Semi-pro Photographer

                                Verified Buyer

                                Pros

                                • Consistent Output
                                • Easy To Use
                                • Fast Recycling
                                • Lightweight

                                Cons

                                  Best Uses

                                  • Fill Flash
                                  • General Use
                                  • Portraits

                                  Comments about Canon ST-E2 Speedlite Transmitter:

                                  I bought this product to trigger remote flashes using the Canon IR system. It works great with my 430EX II and 580 EX II. I can't complain. I was worried that using it outdoors would be an issue. I was able to trigger a flash at least 20 feet away in daylight. I also bought this unit to use with my Radiopopper system. It works great there too. I like how I can control the flash output of groups A and B with this unit and also enable high speed sync. The build quality is very good. I guess the two things I don't like about it are the 2CR5 batteries you need to get. They are not easy to find, but you can get them online for about $6. Also, it locks to the camera hot shoe, but there is some play. I'm sure it's secure, but wish it was a tighter fit.

                                  • Was this a gift?:
                                  • No

                                  Share this review

                                  (1 of 1 customers found this review helpful)

                                   
                                  4.0

                                  Great product, though no manual control

                                  By Lbute

                                  from Dallas, TX

                                  About Me Pro Photographer

                                  Verified Buyer

                                  Pros

                                  • Consistent Output
                                  • Durable
                                  • Easy To Use
                                  • Fast Recycling
                                  • Lightweight

                                  Cons

                                  • No manual capabilities

                                  Best Uses

                                  • Fill Flash
                                  • General Use
                                  • Portraits

                                  Comments about Canon ST-E2 Speedlite Transmitter:

                                  I like to use the transmitter with my flash set up to an umbrella. The ST-E2 works great and so far I've had no issues with the transmission not firing the flash, though I've yet to use it outside. The one problem is that it's ETTL ONLY, no manual control. You can go into the flash bracketing and adjust it up or down up to two stops. Usually this will suffice, however, this might be a problem shooting fill flash in broad daylight.

                                  If manually setting your flash isn't a big concern, I definitely recommend this product! If you'd like to shoot manually with high speed sync capabilities you need pocket wizards or another flash unit.

                                  All told, it gets the job done and is great for the price. I would also suggest getting this over the off camera flash cord.

                                  • Was this a gift?:
                                  • No

                                  Share this review

                                  (1 of 1 customers found this review helpful)

                                   
                                  3.0

                                  Light and compact way to wireless TTL

                                  By Andre

                                  from Québec, QC

                                  About Me Photo Enthusiast

                                  Verified Buyer

                                  Pros

                                  • Easy To Use
                                  • Fast Recycling
                                  • Lightweight

                                  Cons

                                  • Fixed direction
                                  • Special Battery
                                  • Weak Output

                                  Best Uses

                                  • General Use
                                  • Photojournalism
                                  • Portraits

                                  Comments about Canon ST-E2 Speedlite Transmitter:

                                  That's a nice to have for the wireless TTL. It's very light. Works amazingly inside in small spaces but in larger area or outside, the infrared system got beyond it's limit.

                                  Also, the battery is very expensive so buying a rechargeable battery is a must.

                                  Another restriction, the ST-E2 can't control the manual power of wireless flash. You can only work in E-TTL with ratio. This is a very big disadvantages for any studio.

                                  • Was this a gift?:
                                  • No

                                  Share this review

                                   
                                  5.0

                                  Yep, I would but it again!

                                  By Portrait Artist

                                  from Winter Park, FL

                                  About Me Pro Photographer

                                  Verified Buyer

                                  Pros

                                  • Consistent Output
                                  • Durable
                                  • Easy To Use
                                  • Fast Recycling
                                  • Lightweight

                                  Cons

                                    Best Uses

                                    • General Use
                                    • Portraits

                                    Comments about Canon ST-E2 Speedlite Transmitter:

                                    I use the ST-E2 Speedlight with my Canon 5d mounted on the camera hot shoe. Most of the time I use it with my Radio-Popper PX system to fire my off camera 580EXII Strobe.

                                    I love the high sync capabilities.

                                    • Was this a gift?:
                                    • No

                                    Share this review

                                    (0 of 1 customers found this review helpful)

                                     
                                    4.0

                                    Nice option when used with RadioPoppers

                                    By BrianHamptonPhotography.com

                                    from Naples, FL

                                    About Me Semi-pro Photographer

                                    Verified Buyer

                                    Pros

                                    • Consistent Output
                                    • Fast Recycling
                                    • Lightweight

                                    Cons

                                      Best Uses

                                      • Fill Flash
                                      • Night Photography

                                      Comments about Canon ST-E2 Speedlite Transmitter:

                                      My goal was to trigger three 580EX II off camera strobes with RadioPoppers. The ST-E2 worked very well in concert with the RF devices. What I didn't expect was the "Power Save Mode" after 90 seconds. It is a good idea to save your battery power but the "Wake Up" time was too long and not adjustable. This presented a problem for my application but it was solved by using a fourth strobe (550EX) and turning off the strobe light function. It works just like the ST-E2 and I wish I had known that before buying another product.

                                      • Was this a gift?:
                                      • No

                                      Share this review

                                      (1 of 1 customers found this review helpful)

                                       
                                      5.0

                                      Gotta' have it.....

                                      By Steph

                                      from Oregon

                                      About Me Pro Photographer

                                      Verified Buyer

                                      Pros

                                      • ETTL Capability

                                      Cons

                                        Best Uses

                                          Comments about Canon ST-E2 Speedlite Transmitter:

                                          After much research, invested into the Radio Popper PX system. Did not want to use a flash on my camera body hot shoe, so decided to go with the ST-E2. Tried it out without the Radio Poppers and as expected, it did not work once this transmitter was out of site of the flash unit. No surprise there but I did appreciate the low light focus assist with NO flash. If you desire ETTL capability with or without Radio Poppers, this is the way to go.

                                          • Was this a gift?:
                                          • No

                                          Share this review

                                          Displaying reviews 1-20

                                          Back to top

                                          Previous | Next »

                                          Batteries & Power

                                          General Brand -  2CR5 6v Lithium Battery
                                          • Price: $5.95
                                           

                                          Required

                                          What's in the Box

                                          Canon ST-E2 Speedlite Transmitter
                                          • 1-Year Warranty
                                           
                                           
                                          See any errors on this page? Let us know.

                                          Close

                                          Close