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Yongnuo RF-603C II Wireless Flash Trigger Kit for Canon 2.5mm Connection

BH #YORF603IIC1 • MFR #RF-603II-C1
113 reviews
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Yongnuo RF-603C II Wireless Flash Trigger Kit for Canon 2.5mm Connection
Key Features
  • Frequency: 2.4 GHz
  • Range: 328'
  • Channels: 16
  • Flash Sync Speed up to 1/320 sec
This RF-603C II Remote Flash Trigger Kit from Yongnuo features two 16 channel, 2.4 GHz transceivers as well as a shutter release cable for remote triggering of Canon cameras with a 2.5mm connection. Each transceiver has a male camera shoe on the bottom as well as a female hot shoe on top for triggering a flash unit. The system has a wireless range of 328' and can sync at speeds up to 1/320 second. Additionally, it has a dual-function shutter release with half-press and full-press capabilities.
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Yongnuo RF-603C II Overview

This RF-603C II Remote Flash Trigger Kit from Yongnuo features two 16 channel, 2.4 GHz transceivers as well as a shutter release cable for remote triggering of Canon cameras with a 2.5mm connection. Each transceiver has a male camera shoe on the bottom as well as a female hot shoe on top for triggering a flash unit. The system has a wireless range of 328' and can sync at speeds up to 1/320 second. Additionally, it has a dual-function shutter release with half-press and full-press capabilities.

The transceivers can be placed in either single transmit or transceiver modes depending on your needs and can wake up flash units and cameras. Also, it has 2.5mm and PC sync ports for using additional cables in order to connect studio flashes or to different cameras. This kit comes with a shutter release cable for the 2.5mm connection. Also, each trigger runs on 2 AAA batteries.

Compatible Cameras
Canon EOS: Elan series, Digital Rebel (300D), XT (350D), XTi (400D), XSi (450D), T1i (500D), T2i (550D), T3 (1100D), T3i (600D), T4i (650D), T5i (700D), SL1 (100D) and XS (1000D), 60D & 70D
Canon PowerShot: G10, G11, G12, G15, G16, G1 X & G1 X Mark II, SX50 HS
Contax: N and 645
Fujifilm: X-E2 and X-T1
Hasselblad: H series
Pentax: K10D, K20D, K100D, K110D, K200D, K-3, K-5, K-5 II, K-7, K30, K-50, K-500, *istDS, DS2, DS, DL2, DL, and D
Samsung: NX10 & NX100; GX-1S, GX-1L, GX-10 & GX-20
Sigma: SD1, SD9, SD10, SD14 & SD15

Yongnuo RF-603C II Specs

Key Specs
Channels
16
Wireless Range
328' / 100 m
Inputs/Outputs
1x PC Sync
1x 2.5 mm (Camera Shutter)
Battery Type
2x AAA
Wireless
Channels
16
Wireless Range
328' / 100 m
Radio Frequency
2.4 GHz
General
Sync Speed
1/320 Sec
Connectivity
Inputs/Outputs
1x PC Sync
1x 2.5 mm (Camera Shutter)
Electrical
Battery Type
2x AAA
Physical
Dimensions
Receiver: 3.2 x 1.4 x 1.2" / 81.5 x 37 x 30 mm
Transmitter: 3.2 x 1.4 x 1.2" / 81.5 x 37 x 30 mm
Packaging Info
Package Weight
0.35 lb
Box Dimensions (LxWxH)
6.142 x 3.543 x 1.89"

Yongnuo RF-603C II Reviews

Work great but a little flimsy

By Ken
Rated 4 out of 5
Date: 2024-04-19

These are great! They work very well, and are light and compact. The only downside is that the construction is flimsy plastic. If you drop them they will most likely get damaged. I had to tape the battery covers on because they would not stay. The good news is they are inexpensive. I had a set for a few years and performed well until they became unreliable. So I just bought a new pair which was cheaper than the alternatives I found.

Little workhorses

By Rocco
Rated 5 out of 5
Date: 2021-01-19

I have 5 of these little guys and I love how small and simple they are to use. Only one has died in about 6 years. I use them as both flash triggers and shuttter releases. Very simple to change the channels and switch between transmitter and transceiver mode. I also love that they work seamlessly with Yongnuo flashes without needing another trigger mounted to the flash. I love these things

See any errors on this page?

question

I'm looking for a unit(s) that will fire my strobes wirelessly as well as my shutter release wirelessly for a Canon 60D?
Asked by: Michael
This wireless system cannot do both at the same time. So you will need two kits.The camera will have two units attached to it. The one on the shoe is set to be a transmitter and other is set as a receiver and attached to the camera via the camera cord. Each is set to a different frequency. The one on the hotshoe is set the same as the one on the flash. And the other one on the camera is set to the same frequency as the one you hold.It also depends on the specific camera as well. If you want further information about this it is best you contact us directly in chat or over the phones.
Answered by: Robert K.
Date published: 2018-08-25

Hello! Will this work on a Canon R?

Hello! Will this work on a Canon R?
Asked by: Osmany
Yes, it is compatible with the EOS R.
Answered by: Rob
Date published: 2020-06-22

question

Is this compatible with the Canon T3i?
Asked by: Nickolas A.
Yes, the Yongnuo RF-603C II Wireless Flash Trigger Kit for Canon 2.5mm Connection B&H # YORF603IIC1 MFR # RF-603II C1 is compatible with the Canon t3i.
Answered by: Robert K.
Date published: 2018-08-25

Will this keep camera "awake"? Or do I need a ...

Will this keep camera "awake"? Or do I need a separate "pre-trigger"?
Asked by: Josh
The transceivers can be placed in either single transmit or transceiver modes depending on your needs and can wake up flash units and cameras. Also, it has 2.5mm and PC sync ports for using additional cables in order to connect studio flashes or to different cameras. This kit comes with a shutter release cable for the 2.5mm connection. Also, each trigger runs on 2 AAA batteries.
Answered by: Gary L
Date published: 2023-05-03

Does this work with Canon M50 mark2/ MIOPS Smart ...

Does this work with Canon M50 mark2/ MIOPS Smart combo?
Asked by: Harsha
The Yongnuo RF-603C II Wireless Flash Trigger Kit for Canon 2.5mm Connection can be used as a remote trigger for an off-camera speedlight for the Canon M50II. It is not compatible as a remote shutter.
Answered by: Rob K
Date published: 2025-05-05

Can I use this with canon speedlite 270 ex ii

Can I use this with canon speedlite 270 ex ii
Asked by: Pedro
Yes you can
Answered by: Joseph
Date published: 2021-01-14

question

Will the flash trigger work on the Olympus Pen E-PL6? I understand that the remote shooter won't, but I need to trigger the Vivitar 283 oly flash and maybe in a future a Yongnuo 560 ll or lll
Asked by: Enrique C.
Yes, the Yongnuo RF-603C II Remote Flash Trigger may be used as a manual flash trigger to wirelessly trigger the Vivitar 283 Speedlight Flash when using the transceiver on the Olympus PEN E-PL6 Mirrorless Digital Camera.
Answered by: Manzell L.
Date published: 2018-08-25

Canon 50D with YN560 tx ii and YN 603c ii. Cannot ...

Canon 50D with YN560 tx ii and YN 603c ii. Cannot get it to fire my 580ex. Is it compatible? What am I missing? works fine with YN600 flash
Asked by: Bernie
I found the problem! the YN560 tx has function modes that are not easily understandable on the screen. One is to select either 602 or 603 triggers. obviously mine was set on 602. switched to 603 and everything is fine. Now I wish I could decode the other functions. I thank all of you for your time
Answered by: Bernie
Date published: 2020-12-31
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