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Yongnuo RF-603C II Wireless Remote Flash Trigger C3 for Canon 5D 1D 50D

Yongnuo RF-603C II Wireless Remote Flash Trigger C3 for Canon 5D 1D 50D

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The new RF-603 II is improved version of RF-603, it is a remote shutter release as well as a multi-functional flash trigger which can synchronously trigger flashes and studio strobes. 
Through the transceiver based system each item can be used flexibly as trigger or receiver. 
Only 2 AAA batteries are required as power source for each item.
The 2.4GHz wireless frequency is suitable in most countries and guarantees high speed, distance and stability. Within capacious areas, the remote control distance may reach to 100m. 
The synchronization speed can reach to 1/320, depending on the situation.

Improved features:
1. Hot shoe locking system to prevent from slipping off
2. Switch on side for easy operation
3. Enhanced self-detecting system

Supports single contact triggering.
Can achieve wired and wireless remote shutter release function.
Flash Trigger: to fire the Flash Speedlite; to fire the Studio Strobe light (You need to purchase an extra 6.35mm cable to fulfill this function).
You can use ABOVE TWO FUNCTIONS simultaneously.

This listing is for C3 version: 
For Canon 1D 5D 7D 10D 20D 30D 40D 50D 
Type: FSK 2.4GHz wireless remote sustem
Transmitter distance: 100M
Channel: 16 channels
Release: half-way press, full-way press
Receiver interface: one is 2.5mm socket
Studio flash light interface: Standard PC socket
Battery type: 2 * AAA (not included)
Stand-by time: Up to 45hours (TRX); up to 400hours (TX)
Item size: 80.7 * 31.3 * 25.9mm / 3.2 * 1.2 * 1.0in
Item weight: 44g/ 1.6oz (each)
Package size: 16 * 9 * 4.5cm / 6.3 * 3.5 * 1.8in
Package weight: 177g / 6.2oz 

Package List:
1 * Tranceiver
1 * Receiver
1 * Shutter connecting calbe C3
1 * Manual (English)

Customer Questions & Answers

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2 votes

Does the Yongnuo RF-603C II work with a Canon 6D, or a 580EX flash? I can't make them work. Wrong contacts?

  • Hi, I use three RF-603c II's with my 6d. I use one on the camera as a trigger, and two as receivers on two flashes (Yongnuo YN568EX [which also has five contacts] and a Neewer TT560). They only work on the TRx mode, but they've been working perfectly so far. You've checked that the channels on the trigger/remotes are s… see more Hi, I use three RF-603c II's with my 6d. I use one on the camera as a trigger, and two as receivers on two flashes (Yongnuo YN568EX [which also has five contacts] and a Neewer TT560). They only work on the TRx mode, but they've been working perfectly so far. You've checked that the channels on the trigger/remotes are set to the same combination? I can't think of anything else that could be a problem. Like I said they work perfectly with my 6d. So much so that I'm about to order two more RF-603C II's to go with another flash that I just got. Hope you get it sorted out. Best of luck. see less

    By Solaceinsorrow on May 1, 2018

See more answers (1)
2 votes

Would this work for a Canon 6D?

  • Yes it will. I've used them with my 6D numerous times.

    By Police Box on January 14, 2018

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1 votes

does anybody know if this comes with a Sync connector for Canon 7d? If it doesnt, what model should i get for my 7d? Thanks in advance.

  • Yes, it does come with a sync cord for Canon EOS cameras. In this case I also have a 7d and it works perfectly.

    By Greg Hoover on April 21, 2018

See more answers (3)
0 votes

Would this work with a canon m3?

  • All Canon flash mounts are identical.

    By Jerry B on June 29, 2018

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0 votes

Does it require any additional cables if using for T2i / 550D?

  • Hello It is included Thank you

    By Raibeart on May 15, 2018

0 votes

Will this shutter trigger work with an 80D camera?

  • --yes, C1 cable will help you use RF603 trigger as a wired and wireless shutter releaser. if use as flash trigger,

    By Mckenna on May 8, 2018

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0 votes

will it work for 550D?

  • Yes Thank you

    By Donal on May 12, 2018

0 votes

will these work with the pentax k3?

  • They will work as long as you have the right cord for the camera

    By Mr imperfection on May 10, 2018

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0 votes

Do you know if this is the right one for my canon 7D? It says it is, but the Sync

  • It doesn't have HHS or any high sync speed but it will work on canon Dslr also you can't control your flash with the camera manue only on the flash

    By Joseph Pal on May 7, 2018

0 votes

I have canon 5dm, Can I control from the menu camera the YN-560 II???

  • 603 can help 5DIII trigger the YN560II. but flash mode have to do setting on the flash light itself.

    By Kasandra on May 3, 2018

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Customer Reviews

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based on 515 Customer Reviews

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  • By Jerry Austin

    November 1, 2019

    Easy to use and performs as advertised.

    Is this helpful? (0) (0)

  • By ***

    March 2, 2019

    At first the price was kinda making me feel hesitant but gave it a go and it's been 3 months it's doing it's job no faults at the moment, if any I'll do an update.

    Is this helpful? (0) (0)

  • By T

    November 16, 2017

    I was searching for a more cost effective solution than shelling out a ton of money for the PocketWizards.

    Is this helpful? (0) (0)

  • By Teshorn Jackson

    October 12, 2017

    All aspects of operation are good, normal, but no lock in the camera hot shoe. If not careful, it is easy to slip.

    Is this helpful? (0) (0)

  • By stanlerd

    October 7, 2017

    i bought this triggers for my studio strobes and to used the strobes on location, they work perfectly and for the price i was a little worry they might feel cheap but i took my chances and when ahead, im so glad i did, i order two sets of this guys and they came really well pack and really easy to use, also because they have a hotshoe on the top of the trigger im able to not only trigger my strobes/speedlites but also i can mount a speedlite on then and the TTL works perfectly fine im really please with this triggers and for the price you cant go wrong, i recomend this to anybody who is looking for triggers on a budget

    Is this helpful? (0) (0)

  • By Charles Clark

    September 7, 2017

    I have been using nearly from their first units. They have been reliable and do exactly what they are specified todo.

    Is this helpful? (0) (0)

  • By Hans N Nettesheim

    August 28, 2017

    Just received my new RF 603C and was very excited to try off camera flash for the first time. I initially had some problems, but after receiving some advice from a pro photographer I discovered that the problem was not with the RF603C at all, that it was that my flash was not recycling as fast as I was pressing the stutter. I have put new batteries in everything and am not shooting so fast and am not having any issues. I am enjoying these RF603C and will probably purchase another set so I can have 3 flashes set up simultaneously. :) It would be nice in future iterations of this unit if Yongnuo would place the on/off switch in a different location so that it might be accessible while on flash and if some type of simple locking mechanism could be incorporated into the design. That being said, I really like these units.

    Is this helpful? (0) (0)

  • By Robert

    June 15, 2017

    They work now... At first I could not install onto the camera, or into the flash stand nor into each other, I checked all part numbers and do have all correct items for canon units, I had to file both units lock pins with a small file until they would slide into each other then into the camera. After installing batteries and set up the units per instructions I was always getting shots that were way over exposed no matter what I did with the camera settings. Once setting the flash (speedlite 430EX) into manual and turning down the flash output to 1/64 which is my min. I was able to get good shots.

    Is this helpful? (0) (0)

  • By John Martin

    April 5, 2017

    Works flawlessly.

    Is this helpful? (0) (0)

  • By reifnawss

    April 4, 2017

    it slides right on the hot shoe, and just do your business. There are some combination clips inside the battery compartment, just make all of those match on all of the triggers and they all work in sync. Keep in mind, they are all transmitters and receivers at the same time, so use any of them to trigger, and any to receive. You can buy as many as you want, still works great in sync.

    Is this helpful? (0) (0)

  • By damacio bernal

    March 27, 2017

    great trigger distance very accurate have had nothing but good functional triggers :)

    Is this helpful? (0) (0)

  • By DenverGuy

    February 17, 2017

    The lack of ability to use the "test" button for measuring light with a light meter limits this triggers usefulness. Apart from that, when used for triggering flashes, this trigger works very well. I haven't had a single misfire so far. I would recommend getting the Version II of this produc.

    Is this helpful? (0) (0)

  • By MarAl

    November 9, 2016

    Very easy to use. so I made sure that they both are in TRX mode ( on a side) and for the channel ( in the batteries compartment there are four switches) I put all four in off position - sounds weird, but worked for me. Somewhere, I saw someone saying that they work with pocket wizards, I have PW plus III and it is not true - they are simply run on different radio frequencies.

    Is this helpful? (0) (0)

  • By Edward

    October 28, 2016

    Exelente product. Easy to use.

    Is this helpful? (0) (0)

  • By r***e

    December 30, 2015

    As described

    Is this helpful? (0) (0)

  • By r***y

    December 6, 2015

    Work great. Fast shipping. Great seller. A+++

    Is this helpful? (0) (0)

  • By o***s

    March 19, 2015

    All as it should be. Perfect.

    Is this helpful? (0) (0)

  • By r***x

    March 2, 2015

    very good!

    Is this helpful? (0) (0)

  • By a***a

    February 9, 2015

    Thank You :) Good seler !

    Is this helpful? (0) (0)

  • By c***s

    December 31, 2014

    Thank you...

    Is this helpful? (0) (0)

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