RF-603 II RF603 II Wireless Flash Trigger/Remote C3

My RF-602 triggers are aging and that CR2 battery is a real PITA, so I thought I'd try picking up a set of the RF-603II triggers not only for the numerous improvements (locking ring, on/mode switch on the SIDE of the unit, the test button working in hand, etc.) but because these would be compatible without modification with my micro four-thirds camera (Panasonic G3). Worked great out of the box on both my Canon and Panasonic cameras.But. Whether I got a bad unit or a bad cable, I don't know, but the set could not be used as a shutter release with my 50D and 5DMkII, so I am returning them.In addition, I could not get another feature that was mentioned in the specs to work at all, which was the use of the PC port as a triggering input (from, say, a camera's PC port or a light meter) in Tx mode. I like to use a small optical slave in conjunction with the pop-up flash of my Powershot S90 to do radio off-camera flash triggering sometimes (I'm just weird that way), and it works fine with my RF-602s (which are old enough to still have the PC input port on the Tx unit). Couldn't get it to work. And the manual that came with the triggers describe the PC port as an output only (just like on the Mk I 603s). So if this was the feature you wanted the triggers for, you may want to wait and see if anybody reports success on this.Other than that, the triggers were great are popping off remote flashes in my testing, and I'm sorry the other features didn't work as I expected them to.

I chose these triggers based on the fact that I only needed to remote fire some flashes I use for background lighting. As I sometimes need the flashes to be out of sight, I needed something that did not require line of sight and the 603's take care of the job without a missed fire as of yet. For the cost, nothing beats the 603's. Make sure you get the version II's as they have some handy upgrades over the originals.

The trigger works fine, but the locking mechanism does not. I locked in the transceiver to the hot shoe by turning the locking wheel mechanism and then after shooting I attempted to unlock it from the hot shoe by turning the locking wheel mechanism. While the locking wheel turns freely, the actual locking pin that locks into the hot shoe will not disengage. This is a poor design or construction that made this happen. It looks like I might have to break the transceiver off because there seems like no other option to remove it. This is problematic since now the transceiver will become trash and a loss of money to me due to it being a faulty product ... In addition, I have to be careful in the removal so I wont damage the camera. First, I will attempt to contact the "EACHSHOT" from which I made the purchase from to see what can be done on their end before I attempt such a last option action.

If you are looking for a budget flash trigger, look no further. For the price, these just can't be beat.Some of the things I really like about these:Small, takes AAA batteriesWork at great distances, a 100m actually seems accurateTriggers each time (tested for two days, about 1000 shots and fired every time)Each trigger can be used as a transmitter or transceiver (transmit and receive), great for when you want to use a light meterOn and Off switch on the side (actually switch between OFF, TX, TRX)1/320 sync speed, I could only test with my Canon 7D at 1/250thComes with cable for triggering camera remotely, make sure to get correct model for you camera (C1, C3, N1, etc...)Has a Nut so it can be tightened to camera and/or flashWorks with Yongnuo 560IIISo far I have not found anything I don't like about these.Make sure to get Yongnuo RF603 II, the originals RF603 do not have the same options.***Update***Ok, so I've had these for several months now, they are still working great, I've even ordered a few more, have about 8 now. The distance that these triggers work is amazing, inside and outdoors. Also, I've had lots of shoots since switching to these and it's pretty awesome when you don't have one misfire after several days shooting and a couple hundred shots. Another example, at a wedding, I had 2 560exiii speedlights setup on opposite sides of the room at some where between 1/128 or 1/64 power and me and another shooter are both using them at the same time and still don't have a missfire. Wow.

Have tried to order these before and a different company sent the wrong model...or then I tried a different brand and they misfired more than they worked. Finally I was able to get these and I am thrilled with them. I have used these twice so far and I do not think I have had any misfires...the only thing that is odd is the notched thumb wheel it can be difficult to use if turned to tightly.Have also used it as a remote trigger..,both devices seems to have to be set to TRx to make the trigger function work that was not obvious from the devices nor from the manuals.The other thing that is cool is that I have a yungnuo 560 flash and the device will fire that without a receiver on it....so with the two devices I can trigger both of my speedlights.

I owned the first version of the RF-603 wireless transceivers and there were a couple issues I had with them including the absence of a locking mechanism to keep the transceivers securely in place on the hot shoe. (I broke one of the transceivers because it fell off my camera's hot shoe as I was walking around with my bride & groom shooting photos around the venue). The RF-603II transceivers now have a locking mechanism and the on/off switch was moved from the top to the side. I have owned the pair for a couple years and have had zero issues with them. At $30-$35 per pair, this is an absolute bargain. The only caveat is that the transceivers are camera-brand specific, so make sure you are ordering for the right camera.