Overview of the Yongnuo RF-603 Wireless Flash Trigger

Overview of the Yongnuo RF-603 Wireless Flash Trigger


Off-camera flash is a key technique that can really differentiate your photography style and make you and your imagery appear more professional. The tools needed to achieve off-camera flash are relatively simple, consisting of just a flash unit and a cord or triggers to connect the flash to your camera. While a cord is by far the cheapest and most straightforward option, it’s also inconvenient since it physically binds you to your camera. Wireless triggers are a simpler solution, but they tend to be pricey, especially if you opt for Pocket Wizards. Enter a budget option: the Yongnuo RF-603 wireless flash trigger.

Yongnuo RF-603 wireless flash trigger


Priced at under $35 for a set of two, the Yongnuo RF-603 works as both a wireless flash trigger and receiver. It can also function as a remote shutter release for your camera.

Yongnuo wireless flash triggers

What’s in the box: two (2) flash triggers, one (1) N1 shutter release cable. AAA batteries not included.

One of the triggers attaches to your off-camera flash unit via the hot shoe mount. Ihe other slides onto your camera’s hot shoe mount and also connects via the included N1 shutter release cable. Then you simply turn the triggers, camera, and flash on and you’re good to start firing away!

You can also purchase additional Yongnuo transceivers to trigger multiple flashes at once. To use the Yongnuo RF-603 as a shutter release, simply attach one unit to your camera’s hot shoe mount, turn both units on, and use the second unit to remotely fire your camera.

Yongnuo wireless flash triggers

How to Yongnuo RF-603 trigger attaches to your camera.

Yongnuo wireless flash triggers


Besides being very reasonably priced, these Yongnuo triggers are powered by two normal AAA batteries. They use the battery power very efficiently, meaning you won’t have to constantly switch out drained ones. The triggers are also very slim and lightweight in size at just three inches long, making them easy to slip into a bag or pocket. These triggers are compatible with most DSLR cameras, but double check to make sure you order the correct model that is compatible with yours.

Yongnuo wireless flash triggers

Slim and low-profile, the Yongnuo RF-603 doesn’t add a lot of bulk to your flash unit.

Shooting distance

Another point to note is that these Yongnuo triggers use a 2.4GHz wireless frequency, and the remote control distance is up to approximately 100 meters (328 feet). Synchronization speed can reach 1/320, but may only reach 1/250 depending on the exact scenario you’re shooting in.

Yongnuo wireless flash triggers

Yongnuo RF-603, the original version.

Yongnuo wireless flash triggers

Yongnuo RF-603 II, the latest version.

Why the Newer Version is Better

When shopping around, you might notice that there are two Yongnuo RF-603 models: RF-603 and RF-603 II. The older, original version looks like it has recently been discontinued by the manufacturer, but it is still available for sale. Thus, it’s important to note several key differences between the two models, and why you’ll probably want to opt for the newer version. Also note that the original and newer transceivers are compatible with each other, so you can mix and match if you happen to have both versions.

Yongnuo wireless flash triggers

The round locking mechanism above the metal hot shoe of the Yongnuo RF-603 II (the original version does not have this feature).

Yongnuo wireless flash triggers

An example of the locking mechanism being used to attach the flash to a lighting stand.

Enhanced on/off switch is on the side for easier access

The original trigger has the on/off button on the top surface, which means it is completely covered up when attached to your flash. Thankfully, Yongnuo fixed this problem in the second version, and moved the on/off button to the side of the trigger. The newer version also includes the option of designating the trigger as off, in TR mode or TRX mode, rather than simply on or off.

Yongnuo wireless flash triggers

Even before the flash unit is fully attached, the on/off switch of the original Yongnuo RF-603 is already covered and hard to access.

Yongnuo wireless flash triggers

The newer Yongnuo RF-603 II added options to the on/off button and moved it to the side of the trigger.

Yongnuo wireless flash triggers

Having the on/off button on the side of the trigger makes it easier to access with the flash attached.

Who should use Yongnuo RF-603 Triggers

If you’re a photographer looking for a low-cost way to experiment with off-camera flash, Yongnuo triggers and even their own brand name flash units are highly recommended. Based on multiple user reviews and my own experience with Yongnuo products, they are dependable, efficient, and incredibly easy to use despite being considered budget options.

The only downside to these Yongnuo RF-603 triggers lies in their simplicity. Since this base model trigger only has a simple on/off button, you still have to manually adjust your flash settings if you want to tweak the flash power, flash zoom, etc. Upgrading to a more sophisticated trigger system such as the Yongnuo 622N TX ($85 for a pair approx.) gives you the full power of adjusting flash settings without having to even touch your flash. However, given the extra cost and complication of the Yongnuo 622N, only opt for this version if you truly need the extra features (in other words, stick with the RF-603 if you’re a beginner or on a budget).

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Yongnuo RF-603 Wireless Flash Trigger
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Suzi Pratt is an internationally published Seattle event and food photographer. Her photos appear regularly in Eater and Getty Images. She is also a blogger who teaches others how to run a successful photography business.

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  • Russell

    Do you actually need the N1 cable if you don’t want the remote shutter release functionality?
    Surely the hot shoe would be sufficient?
    Using the N1 socket precludes the use of an intervalometer or other advanced shutter release.

  • Yes, You dont need it. I have 2 pairs of them and absolutely love them.

  • Michael

    It looks like this trigger is a good cheap option for remote triggering the off camera flashes. However, the receiver is not equipped with the mounting tripod 1/4 x 20 socket that requires to purchase dead hot shoe mounting bracket.

  • DeePee

    Hello, if i Buy these now can i add the YN622N TX controller and the 622n transceivers
    later and still control these units.Thanks in advance for any advice. Peace !!!

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  • Ashish Nigam

    I have a YN600EX-RTii , can this directly control it … or I need two of these

  • Michael D

    Did you notice that your camera cord appears to already be broken at the camera end??

  • Yes, I did. It was like that for about half a year (and still worked fine), but I finally replaced it.

  • Rhys

    I’m confused as to the use of the 2nd trigger mounted on the external flash, why is this needed? I bought a kit which came with two 560III flashes and one rf603 which is on the camera hot shoe and with the flashes set to RX mode they both fire correctly. What am I missing by not having additional triggers on the flashes?

  • Fanis Avgerinos

    Hello! Can I use the off camera transceiver as a remote so I can trigger the shutter while I am away? For example for self portraits. Thank you!

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