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

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.

I was searching for a more cost effective solution than shelling out a ton of money for the PocketWizards. I bought 2 sets of these for the price of just one PW+ II transceiver - good! Since they were all transceivers, it did not matter which was attached to which device (camera or flash). These are certainly not that small, dimensions are approximately 2.75x1.5 inches not including the hot shoe stubs.The manuals of course were sparse or barely minimum like device layout, micro-switches, operations, and battery type/compartments. Packaging were standard box with the 2 transceivers, manual, and camera trigger cable (in my case the 3-prong type that fits my Canon 7D).Operations was straight forward and triggers as designed whether it would be triggering off camera flash or using the transceivers as a remote camera trigger when the infrared wireless fails. Some things to note: I could not do a test firing of the flash or trigger the flash via the button on the transceiver itself. Even pushing the button on the transceiver that's on the hot shoe of the camera did not produce any test firing of the flash. It will trigger the flash if you actually push and take a test shot on the camera and wasting a frame. My 7D max flash sync is 1/250 and this works alright with it except I think there's a slight delay in the transceivers trigger. Testing against a white wall I could see a slight sliver of the shutter curtain. Not a problem if you give it some space and do a minor crop in post otherwise in daylight you won't notice it or shoot at 1/200 if it's really annoying. I did not test the transceiver distances to verify the claims.Design flaws to note: 1) The micro-switches are buried beneath the AAA batteries so you can't easily reconfigure them without having to yank the batteries out. 2)I don't know why but they designed this without any way of securing the units to the hot/cold shoes. No screw clamps/clasps of any kind so I had to use hair bands to tie it to my flash's stand plates. So be warned if you buy these units.Pros:Small & compact"AAA" batteries (2)Good build qualityCheaper than PWsCons:No way to secure the units to OEM flash stand or camera shoe mountPoor choice in Micro-switch placementNo flash test firingSo there you have it - 3 star rating due to those design flaws. I'll keep them for now and just get some Frio cold shoe mounts to use with these and just be careful not to accidentally knock the unit off of the camera.Update: 9 April 2012 - So back in November I purchased two pairs of these transceivers. I made lots of shots, used it to remote trigger my flashes, and camera as a shutter release. I am satisfied by the performance with these units but now two of the individual units are starting to fail. One of them just plains cuts out anytime it receives a light tap on the casing and the other one starts triggering my camera for no apparent reason. All this in less than 6 months of normal use, no abuse. From this experience, quality control is an issue and I got what I paid for - cheap QC. Perhaps others may get many more months of use than I did out of these units but my next purchase will certainly address all my short comings that I've already written about.

Ho acquistato questi Trigger nonostante i moltissimi feedback positivi su vari siti non ho riscontrato la funzionalità perfetta, può darsi che si è trattato di un prodotto diffettoso, ed infatti il venditore mi ha rimborsato (ottimo direi).I problemi sono max sincronizzazione 1/160 sec e su esterni diciamo che non è il massimo quindi su sport non utilizzabile, troppo lento.Ogni volta per azionarli si attiva il pulsante di scatto, ma a parte questo se collego il mio Nissin sopra il trigger collegato alla fotocamera, non funziona, e ok , ma a parte tutto ogni tanto non funzioano, e non è dovuto al flash non completamente carico ma proprio per il fatto che perdono colpi.Ad ogni modo può darsi che ho ricevuto oggetti difettosi quindi intanto do 10+ al venditore che mi ha rimborsato e 10 ad amazon.

I had brought the Promaster trigger and receivers about two years ago. I was not happy with the quality or the price. While i was Second Shooting a wedding (!!!), my Promasters decided to not function and I had to wing it with my flash on top of my camera. Needless to say, I was upset with my T&R from Promasters.I bought these bad boys after decided on what kind of features I wanted in my next triggers. These are awesome! They use triple A batteries which is better than the little disk batteries; that was a major issue with the Promasters. I also like that I can have different set ups with these; the manual is clear on how to use the triggers and the kind of battery life for your triple A's. I would purchase the 3 piece kit as i have 3 flashes but these will work for now.

La verdad es que por este precio son una maravilla. Funcionan bien, a buena distancia y sin fallos. No tiene una buena sujeción, así que puestos en la cámara con un flash conectado si apuntas con la cámara hacia arriba, se te puede caer con el flash. Aunque para eso tenemos una frente, no?. Yo estoy muy contento, no creo que los usase para trabajo intensivo, pero para algo tranquilo están muy bien. Acabo de comprarme un segundo par.

Todo correcto, funciona perfectamente, puedes disparar un flash externo desde la cámara sin problemas. La única cuestión a tebeo en cuenta es que no soporta TTL, pero eso ya lo especifica el vendedor en las características. Hay otro modelo superior y más caro de la misma marca que si soporta el modo automático, pero para mí este es más que suficiente.Calidad precio excelente.

Per tutte le persone che comandare i flash a distanza senza dover utlizzare trigger piu' costosi questi sono perfetti.L'unica pecca che su canon il sincro a cui si riesce ad utilizzare e' 1/160 .