Yongnuo RF-603 and Cowboystudio PT-04 Comparison

The Yongnuo RF-603 Wireless Radio Flash Transceiver (left) and PT-04 Wireless Flash Receiver

Let’s compare the specs:

Yongnuo RF-603PT-04
The receiver has an on/off switch, and an LED to indicate triggeringYesYes
Transceiver Type: Each unit can be a transmitter and a receiver.YesNo
Battery Power:2 x AAATransmitter Power: 23A 12V battery.
Receiver Power: 2 AAA Battery
Maximum Working Distance100m 30m
Channel Dip SwitchInternal inside battery compartment, hard to use.External, easy to use.
Max Sync Speedat 1/320 and up, severe shadowing, at 1250 minimal shadowing, clean at 1/200at 1/320 and up, severe shadowing, clean at 1/250
Wireless Shutter Release.YesNo
Studio lights interfaceStandard PC SocketNone
Metal bottom footYesNo
Locking lever on bottom foot.NoYes
A standard ¼in screw mountNoYes
Hole on metal plate of the shoe mount to lock speedlites in place.YesYes
Umbrella HolderNoYes in some versions.

The Yongnuo RF-603 Wireless Radio Flash Transceiver (left) and PT-04 Wireless Flash Receiver (right)

The RF-603 (left) has a much lower profile than PT-04.

You can see from the photo above that the Yongnuo RF-603 transceiver unit has a much lower profile than PT-04 Wireless Flash Receiver.

The bottom of the RF-603 (left) and PT-04(right).

As mentioned earlier in my review, the RF-603 despite having an upgraded metal foot lacks a locking lever to secure it in place when attached to a flash stand / light stand. This is a must have to some people, but for me, it’s not that of a big issue.

Inside the battery compartment of the RF-603.

Two places where Yongnuo lacks in ergonomics design, here’s one, in the placement of the channel dip switch and the On/Off switch. The channel dip switch is hidden inside the battery compartment making it hard to reach specially when you need to make quick last minute changes.

The RF-603 (left) and PT-04(right) with attached Yongnuo YN-560 flash.

Above you can see the RF-603 and PT-04 with flash attached. Here’s the second place where the RF-603 lacks in ergonomics, once a flash is attached to the RF-603, there’s no way to reach the On/Off switch. I like how the On/Off switch of the PT-04 is positioned, even if there’s an attached flash, it is still reachable.

The RF-603 (left) and PT-04(right). Some versions of the PT-04 comes with an umbrella holder, a great plus.

The Yonuno RF-603(left) and CowboyStudio Pt-04(right) with attached Yongnuo YN-560’s

So which one will you get? It really depends, they bought work, the RF-603 offers more distance(100m), uses 2 regular AAA batteries, it’s a transceiver type device, each unit can act as a transmitter and / or a receiver, it’s also a wireless remote shutter release. On the other hand, the PT-04 has been here quite a while, works for most application, doesn’t have the ergonomics design flaw of the RF-603 that I have pointed out. I have both, currently I have 2 PT-04 transmitter and 4 receivers and a pair of RF-603 and 1 more pair on the way. I can use them together side by side thanks to the RF-603’s transceiver design, all I need is to attached my PT-04 transmitter on top of the RF-603 hot shoe and it will trigger my PT-04 receivers the same time the rf-603 triggers other rf-603’s. Let me just mention that after using the PT-04’s for almost a year, I’ve seen it misfire a lot of times, and I have to retake the photos because of luck of light. I find the RF-603’s pretty accurate especially in long distance application. But again, I have not tested this. In the end it’s a decision you have to make. If you can get by some of the mentioned weaknesses of both devices then one of them maybe right for your application.

Review of the Cowboystudio PT-04 I did almost a year ago.
Review of the Yongnuo RF-603 here.

Where to buy?

For Canon:
For Nikon:
PT-04 Canon /Nikon

For corrections, inquiries or suggestions regarding this post, please let me know, I do value your inputs, feel free to post a comment below. Thanks.

If you enjoyed this post, please consider leaving a comment or subscribing to the RSS feed to have future articles delivered to your feed reader.