BRONCOLOR – RFS 2.2 – HS Transceiver For Siros L Announced



Broncolor have announced a new RFS 2.2 transceiver, which will provide remote power control and High Shutter Speeds (HS mode) with the recently released Siros L cordless strobes, and Move portable pack system.

The RFS 2.2 transceivers are available in dedicated Canon, Nikon, and Sony versions.

Update – A Fuji version is also now available.




The Broncolor HS mode uses the Long Duration Sync method (rather than pulsing the flash like traditional HSS).

Enabling the HS mode on the Siros L and Move strobes adjusts and optimizes the flash curve to allow shutter speeds up to 1/8000th.

The RFS 2.2 transceivers are pre-programmed to provide the optimum shutter delay timing for each camera model.

Though a HSMA menu (HS Manual Adjust) can also be used to choose an optimal exposure delay setting manually.


The RFS 2.2 transceivers, when used as transmitter unit on the camera, also provide an AF assist light, and are powered by 2 AA batteries.

Also being transceivers, the RFS 2.2 can be used as receiver units, to simply fire other strobes which do not have the Broncolor RFS 2 receiver / interface built-in.

Regular readers will no doubt recognize the popular radio system the RFS 2.2 are obviously based on. Its not currently stated how many groups etc the RFS 2.2 will provide.



For existing Siros L units, Broncolor recommend a software update to version 52.03.

That update improves the handing of the HS function, and may be downloaded from the Broncolor website –

For Move owners a software update is mandatory, and must be done by a Broncolor service center.







Broncolor have also announced an innovative new 5:1 Strip Grid for use with their P70 reflector.

As the name suggest, the grids cells are formed in a rectangular shape with a 5:1 ratio, instead of the traditional round or honeycomb shape.

This results in more of a rectangular, or oval, flash pattern being projected than a traditional circular one.


Broncolor Strip Grid 5:1





The Broncolor RFS 2.2 Transceivers are available now from $112 –

Canon – Adorama, Amazon, UK, B&H Photo
Nikon – Adorama, Amazon, UK, B&H Photo
Sony – Adorama, Amazon, UK, B&H Photo

Fuji Transmitter – AdoramaAmazonUKB&H Photo


Broncolor Strip Grid 5:1 for P70 Reflector are available from $230 –

Adorama, Amazon, UK, B&H Photo


Broncolor – Website


  1. D 4 years ago

    Come on Flash, even you can tell this is a rebranded Godox X1. What a joke from Broncolor.

    • Author
      Flash Havoc 4 years ago

      Why do you think its a joke?

      Most of the radio technology available to today is developed by a small number of Chinese companies. It would be a huge job to start from scratch, and then the customers would have to pay for that.

      • D 4 years ago

        Because by slapping their brand on it; they are charging the consumer 5 to 10 times more the price of these triggers made for Canon/Nikon/Sony. I know it’s a business but the consumer loses out here.

        • Author
          Flash Havoc 4 years ago

          I don’t think they have just slapped their brand on them. As explained to Kevin bellow, they would have had to have them adapted to the existing Broncolor radio system. And the have added a dot matrix LCD and new interface etc which all cost money in development.

          Though even if they were exactly the same, you’re also paying for Broncolor’s after sales service, and distribution model etc. Its not realistic to compare that directly with Godox’s lowest prices available.

          The Siros where designed to be more affordable line from Broncolor. It would have cost a lot more to develop the radio software themselves.

  2. mmmfotografie 4 years ago

    The trigger is indeed produced by Godox and as FlashHavoc wrote why reinvent the workings of different camera producers on your own.

    Finally someone is working together because the camera producers won’t help you.

  3. Kevin 4 years ago

    Is it really just an X1 with a different label on it? Does this mean Broncolor strobes could be used with Godox ones?

    • Author
      Flash Havoc 4 years ago

      Hi Kevin,

      No its not just a rebranded X1, it has a different dot matrix LCD screen to start with. Godox would have had to modify and adapt it to the Broncolor radio system and receiver already built into their strobes. So they are not going to have any compatibility with the Godox units.

      • Alex 4 years ago

        Indeed is Godox rebraned trigger. The design is 1 to 1. Big, ugly, chunky and not 2016, WTF. They should have coppied Shanny trigger shanny sn-e3-rt which at least have nice LCD with 5 groups, its colorful and way more attractive, looks more like 2016 and not those 1999 ugly Godox X1 big ass blobs on top. Come on freaking Broncolor.

        Yeah, in fact the logo is different and probably some of the hardware and software, but the design of it is just damn big, fat and ugly and 1:1 as the Godox X1 !!!

  4. paul t 4 years ago

    But they should have redesigned the exterior,this is very bad for the brand image.

  5. Andy 4 years ago

    Is there a difference so if I use a Sony A7 for example with Xt-1 S transmitter and use the upcoming XT1-S receiver with a Bron siros 800 L for example it should work exactly the same and I could use the receiver for other brands flashes as well ?

  6. Andy 4 years ago

    So then I’m not limited to Bron alone? I could mix different flash brands together ? Like a slow flash duration Godox and a Bron unit all together ?

  7. M 4 years ago

    Just got the new receiver, rfs 2.2, and wondering if this works at all with the Canon ST-E3-RT?

    Would be so nice to use my Siros together with Speedlites (EX600RT II´s) that I have. I got Speedlite working in sync, when mounted it directly on top of RFS, but with ST mounted on top of RFS, it does not trigger Speedlite.

    Thanks for any help!!


    • Author
      Flash Havoc 4 years ago

      Hi M,

      UPDATE – I have edited / removed my comment here to help save any confusion.

  8. Robert 3 years ago

    I’ve posed this very question to B&H and Broncolor. Both say the ST-E3-RT should trigger Speedlites when mounted on the RFS 2.2. However, you won’t get TTL or Canon’s HSS.

    Q: “I have a pair of Canon 600EX-RT’s and a ST-E3-RT. I know I won’t be able to get the Broncolor’s HSS to work with these. But, would I be able to a stick the ST-E3-RT on top of the RFS 2.2 and control the 600EX-RT’s in standard shooting?”

    A: “Thanks for your question. The RFS2.2C’s top hot shoe is only for x-sync only, meaning that while the flash would fire, any E-TTL or HSS signal would not be transmitted.”

    Q: “I’d like to trigger the Siros 800L along with a pair of Canon 600EX-rt’s by putting a Canon ST-E3-RT on top of the RFS2.2. Is the RFS2.2C hotshoe merely a pass-through from the camera hotshoe? If that’s the case, the ST-E3-RT could take the passed through camera signals and transmit them to the 600EX-RT’s. Is this a safe assumption?”

    A: “The middle contact of the RFS 2.2 C will „hand over“ the sync signal to the device mounted on top of its upper hot shoe. It should work as intended by you.”

    • Author
      Flash Havoc 3 years ago

      Hi Robert,

      Thanks for that, and my mistake. Its not a full TTL transmitter or pass through hotshoe anymore like the Godox X1.

      So Mr M’s issue above is likely just that the Canon ST-E3-RT will not fire unless mounted on a full ETTL hotshoe.

      The YongNuo YN-E3-RT will fire on a single firing pin hotshoe though, so they may well work mounted on the RFS 2.2 transmitter.

  9. dslrpundit 3 years ago

    My friend bought one of the TX from above brand and it didn’t work well for him. I have a Yongnuo flash, any recommended decent brands. Should I stick with YN transmitters and receivers only?

    • Author
      Flash Havoc 3 years ago

      Hi dslrpundit,

      It depends on which YongNuo flash you have, though generally it is best to stick with YongNuo transmitters and receivers with YongNuo flashes (if your flash does not have a radio receiver already built in).

  10. andy 3 months ago


    I am looking to hire a Broncolor L.

    Just out of interest…… Will the broncolor Broncolor RFS also trigger godox flashes? or are they on a different frequency?

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