Yongnuo RF-602 Wireless Flash Trigger


The Yonguo RF-602 has become a standard item for many strobist photographers looking for an affordable method to detach their speedlights from their camera hotshoes. It is perhaps the cheapest, yet still dependable, way to trigger your flashes reliably without having to mess with any settings. I’ve demonstrated this product at a couple workshops that I’ve hosted, and it’s clear that everyone loves them. I have been using them for all of my speedlight photography for the past year and I couldn’t be happier with their performance.

Because this product is so popular among photographers, many others have already published in depth reviews on the Yongnuo RF-602. Their articles provide a lot more depth on the specifications than I am willing to dedicate to this topic, so I highly suggest that you read one of these reviews if you want to learn more about the device.

There are 2 design flaws that I would like to mention, which are the reasons why this product is not getting a perfect 10 score from me. The first issue is that the transmitter does not have any way to secure itself to a camera’s hotshoe. It can easily slide off towards the rear of the camera with the slightest bump. This has caused me to drop it in sand on a beach a few times, which is never good for electronics. The second issue concerns the placement of the on/off switch for the receiver. It is all but impossible to switch it on and off when it is connected to a speedlight. Even Yongnuo’s own YN-560 speedlight is designed so that you can’t easily access the on/off switch. The switch needs to either be moved further forward on the unit, away from the hotshoe mount, or placed on the bottom side. I hope that Yongnuo comes out with an updated product to solve these two problems because that will basically perfect this product.

If you are interested in purchasing the Yongnuo RF-602, I highly suggest buying them through Amazon.com. They offer a great price and ship from America (unlike listings found on eBay).


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2 Comments. Leave new

I purchased the RF-602 wireless flash trigger for a canon 40d and cannnot get it to sync and fire the flash. Are there certain settings that I should have my camera on besides manual for the receiver RF 602RX to receive from the RF-600TX transmitter?

Eric Heikkinen
August 3, 2011 11:38 am

Lee, the issue could be your shutter speed. Most cameras have a 1/200th or 1/250th of a second maximum flash sync speed (specified in your camera’s manual). If you shoot with a faster shutter speed than that you may have either a partially dark photo, or entirely dark photo. See this video for an explanation of that issue: http://www.youtube.com/watch?v=is1JMu_khbs.

Other than flash sync speed, the problem could be related to the radio signals not matching on the transmitter/receiver combo. Make sure that the little switches under the yellow/orange-ish area on the two devices are both in the same position. When you have the receiver powered on you should see a blinking red LED light. If you press the transmitter button it will turn the receiver’s light green, showing you that the signal to fire is going through.

The third possible variable could be battery power. Make sure that you are using fresh batteries in both devices. I know that the transmitter uses a funny sized battery, but you can find replacements at any local hardware or drug store.

The final possibility is that you received faulty units. In this case, contact the seller to see if they have any further advice or if they will exchange your product for a new one.

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