Yongnuo RF-603C3-INT Wireless Remote Flash Trigger for Canon 1D 1DS 5D 5DII LF239 (Discontinued by Manufacturer)

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Product Specifications

Works as a wireless shutter release control to trigger your camera
Transceiver System - works as a wireless flash trigger and receiver
Each RF-603 is designed to work as trigger and as receiver
Compatible with Canon 1D/5D/7D/50D/40D/30D/20D/10D Series cameras for shutter release control
Includes (2) RF-603 transeivers (1) C3 shutter release cord

Product Description

Style:International Warranty The brand new RF-603 is a remote shutter release as well as a multi-functional radio 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 it may reach to ¹⁄₂₅₀ or less. A set consist of 2 equal transceivers. Both of them can be a receiver as well as transmitter. It can trigger 1 flash with one set, since one serves as trigger and one as receiver. You can also buy additional transceivers to trigger 2 or more flashes at the same time. Includes (2) RF-603 transeivers (1) C3 shutter release cord

Product Reviews

Work great.

I ordered three pairs of these from Amazon. After unwrapping them and installing two AAA batteries in each of them, was snapping pictures within minutes using my 7D and four flashes in manual mode:Two YN-560’sOne Canon 430EXOne Canon 580EX IIThat left one RF-603 unit free to use as an off-camera shutter release. A much better solution (in my opinion) than the Canon RC1 infrared shutter release that I also own. There were no configuration issues, simply put batteries in them, plug them into the speedlights, and they work. I love it when stuff just works.The lack of a securing pin on the RF-603 to a hot-shoe is not an issue for me. The unit stays secure on my camera through spring-compression of the contacts. The 603’s stay secured to my light stands through the stand’s clamps, and each of my speedlights have a clamp that keep them secured to the top of the RF-603 units.I also do not have an issue with the dip-switches being in the battery compartment. With the dip-switches in the battery compartment, they won’t get accidentally moved around.The only issue I have with them is that I have to remove the speedlight from each of the RF-603 units to turn the units on and off. A minor annoyance, but a power switch on the side would be easier.My rating is because they work as they’re supposed to and is not based on what I wished they did. A great value!

Great for the price

What you need to know before buying any of these:- The flash control is manual only. Be ready to go around your flashes to adjust. Considering the price it is absolutely acceptable and expected. (Come on, Yongnuo, make me lie and release an ETTL version for the same price, I’ll buy 6 immediately!)- The RF-603 does not feature a locking mechanism on the hot shoe attaching to the camera. I have nearly crashed a 580 Ex-II connected on top of one of these thanks to this omission. This is the only minus I am willing to retain considering the price, although admittedly in the majority of cases the cold-shoe you attach the RF-603 to will have such locking mechanism.- The RF-603 does not have master and slave units: they are all equal in functionality and can all be used as master or slave or to trigger the camera remotely (a very nice feature).- Up to 16 photographers can be controlling their flash with RF-603 at the same time without interfering with each other provided they set theirs to different channels. The channel is set on a DIP 4 switch in the battery compartment and all RF-603 that need to communicate need to be on the same channel. For now, just pick any combination and assign it to all your RF-603.- HOWEVER the RF-603 are not all the same. They behave the same, but there are flavors: the RF-603 N (for Nikon) and the RF-603 C (for Canon) have a different pin-out for the contacts in the hot-shoe, simply because the Canon and Nikon hot shoe contacts are different.You will need the right contacts for the camera you use - however normally it should not matter with what flash you use them as only the trigger is used and this one is the same regardless of the brand.- Then there is the matter of the remote control of the camera. Here the problem is that not all Canon cameras use the same plug for the shutter release (the one you use in pause B for Bulb). This determines the nature of the cable that comes with your pair of RF-603 C: RF-603 C1 has the cable for the rebel etc, and RF-603 C3 has the cable for the 7D, 5D, 1D etc.So, make sure you buy the set you need for your camera brand and model.How you use them:- Make sure all the RF-603 are on the same channel (set in a DIP-switch in the battery compartment).- Switch on all the RF-603 and THEN attach the flash you want on the top hot-shoe. Some people complain that the power switch is badly placed; it doesn’t bother me.- If you have studio strobes, you can connect each to the PC sync connector at the back of a RF-603 with a cable that you will have to procure separately.- Connect a RF-603 on your camera hot shoe and if you want to control the camera remotely, plug the shutter release cable between the 603 and the camera.That’s it.Pressing the shutter on any RF-603 within range and on the same channel will take a picture, firing all the flash attached to any RF-603 on that channel within range.That includes a RF-603 not connected to anything, so if you have a spare you can trigger remotely the camera and flash without a problem.If it does not work, you can check the following:- Do all 603 have fresh batteries?- Are they all switched on?- Are they all on the same channel?- Is the one connected to the camera plugged in on the hot-shoe?- Is it connected to the bulb port? (Only necessary to remote control the camera)- Ar they all in range? (Yongnuo claims 100m but I wonder under what circumstances I would need that much…)- Do you have more than one remote controlled camera?I have two sets: a RF-603 C1 and a RF-603 C3 to have a shutter release cable suitable for each of my cameras. All transceivers are identical and interchangeable and interact very nicely; no problem at all. I didn’t even have to read the doc as I had picked up how to use these from the reviews here on Amazon!The one thing that does not work is remote controlling two or more cameras at the same time: the first one to shoot gets the flash; the other one is left in the dark. This is expected and normal. As long as you have no more than one camera on remote control you are fine.Someone was complaining that the master RF-603 (attached to the camera) still had to be on the hot shoe of the camera in addition to being connected to the bulb port.This is expected: not all cameras will trigger at the same moment when the shutter is pressed; for instance if you are in AF, your camera will want to focus before releasing the shutter and that may take a variable duration.The RF-603 connected to your camera “presses the shutter release button” through the bulb port (the cable), then the camera triggers the flash when its first curtain is down. The RF-603 has to be connected to the hot-shoe to sense that flash trigger and share the information with its buddies that are actually connected to the flash.___________________Edit on June 11th 2013In the original review I mentioned that remote-controlling the flash still required having the wire plugged in. Alana Right pointed out in the comments to my review for the RF-603 C1 that this was erroneous and indeed, I tried all the combinations of Canon body and flash I have at hand, and only one in one special case does seem to require the cable (most of the time). It turns out that you may want to make sure that your cold shoe does not short the contacts below the RF603 but otherwise the Canon bodies will trigger the remote flash even when not connected through the remote shutter cable.All in all unless of course you want to remote-control your camera, you don’t need to plug in the remote control wire, essentially making the RF603 C1 and C3 entirely compatible as for flash triggering.This also means that unlike mentioned in my original review, the RF603 is compatible with using a cable for shutter release.Finally if you don’t plan to use the cable, the RF-603 C3 is also compatible with other Canon bodies such as the G15 - I attach a picture above. It works just fine.Thanks again to Alana for taking the time to point this out.___________________Finally I have not tried mixing RF-603 C with RF-603 N. I would be surprised that they don’t interact seamlessly as long as you attach a 603 N to any Nikon camera and a 603 C to any Canon camera, but it would be worth the experiment.

Great triggers if they work with you camera model

Update:Still work well and have proven themselves solid. I use these with my flashes since they don’t work with my Fuji X-T1. I purchased a set of RF-603 II’s that work with the X-T1, and they also work with these allowing me to have a giant system of wireless triggers. Works very well. I’ve had successful triggers of over 300’ and they have proven reliable.Original Review:So far this seems like a solid trigger. I have own Paul Buff Cybersyncs and have owned PocketWizards before these, and they seem to perform simply. (Note: I have not tested for distance, but short range they work well.) I purchased these to use with some YN-560 III flashes I purchased.This would be a 5 star review if they worked on all my cameras. Apparently this model does not function on the Fuji X-T1 and one or two other Fuji’s. In my research they also have issues with some other models from brands such as Panasonic and Olympus. Not all the cameras, but just specific models. This is due to the trigger needing a certain amount of voltage on the #4 pin from the camera to make the trigger change from receiving mode to transmit mode. Some cameras (such as the Fuji X-T1) do not supply enough voltage to this pin to trigger the switch. Some do, even within a line of cameras from the same company. My Fuji X100s works perfectly for example with these triggers.All is not lost if you own one of these however. There are videos online that describe modifications that will allow the routing of voltage between the battery of the unit and the #4 pin. This will require soldering and permanent modification to the device, but will result in the ability to use a switch to fake having the necessary voltage to force the unit into transmit mode.If you do not own these yet there is always the RF-603 II. Do a search and find if they work with your specific camera model. Most that have an issue will have results of people complaining about that model not working via various online forums. If this is the case, you can purchase the slightly more expensive RF-603 II version which essentially has the switch modification already performed on it. It has the switch built in.

Trigger.

great product for photographers starting out.

It works perfectly, the only problem I found is …

It works perfectly, the only problem I found is that the battery cover does not fit perfectly, it becomes bulky and the switch on/off It is not very rigid.

Five Stars

Excellent!

I have a set of 4 and I use them a lot. Would recommend if this is the first triggers you buy. Perfect for studio use and outside work.

Five Stars

LOVE! Cheap substitute and works amazing. Never failed me yet!

Not for me… or you.

There is no way to tighten these down on your hot shoe. They just slide off with you flash mounted on it. Not a good idea. Spend a little more money and get on that stays in place.