---
product_id: 1674135
title: "RF-603 II 16-Ch Wireless Flash Trigger for Canon 3-Pin Connection 1D/5D/7D/10D/20D/30D/40D/50D Cameras, 2.4GHz, 1/320sec Sync Speed"
brand: "yongnuo"
price: "$86.27"
currency: USD
in_stock: true
reviews_count: 4
url: https://www.desertcart.us/products/1674135-rf-603-ii-16-ch-wireless-flash-trigger-for-canon
store_origin: US
region: United States of America
---

# 1/320s Sync Speed 2.4GHz Frequency Locking Rings RF-603 II 16-Ch Wireless Flash Trigger for Canon 3-Pin Connection 1D/5D/7D/10D/20D/30D/40D/50D Cameras, 2.4GHz, 1/320sec Sync Speed

**Brand:** yongnuo
**Price:** $86.27
**Availability:** ✅ In Stock

## Summary

> Capture the Moment ⚡ - Elevate your photography game with precision and style!

## Quick Answers

- **What is this?** RF-603 II 16-Ch Wireless Flash Trigger for Canon 3-Pin Connection 1D/5D/7D/10D/20D/30D/40D/50D Cameras, 2.4GHz, 1/320sec Sync Speed by yongnuo
- **How much does it cost?** $86.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/1674135-rf-603-ii-16-ch-wireless-flash-trigger-for-canon)

## Best For

- yongnuo enthusiasts

## Why This Product

- Trusted yongnuo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Durable design with locking rings ensures your gear stays secure during every shoot.
- • **Enhanced Control:** Experience improved flash and shutter control buttons for a more intuitive shooting experience.
- • **Unleash Your Creativity:** Achieve stunning shots with a lightning-fast sync speed of 1/320s, perfect for capturing action.
- • **Versatile Compatibility:** Works seamlessly with a wide range of DSLR cameras, expanding your creative possibilities.
- • **Power at Your Fingertips:** Easily switch between transmitter and receiver modes to adapt to any shooting scenario.

## Overview

The Yongnuo RF-603 II is a cutting-edge wireless flash trigger designed for Canon cameras, featuring a lightning-fast sync speed of 1/320 second, 2.4GHz frequency for reliable performance, and enhanced controls for a seamless shooting experience. Compatible with a variety of DSLR models, this device is perfect for photographers looking to elevate their craft.

## Description

RF-603 II, the manual Flash trigger and shutter release ( you can use those two functions simultaneity ), it adopts a global free FSK 2.4GHz wireless channel which can be suitable in many countries. RF-603 II with FSK system, can be more effective to guarantee speed, distance and stability. Within capacious areas, the remote control distance may reach to 100m, and is suitable for the first generation RF-603. Suit for first generation, you can use them together. Note: Canon cameras choose RF-603 II Canon version, Nikon Camera choose RF-603 II Nikon version, other cameras can choose any version.

## Features

- 1, Higher sync speed than the first generation --- The highest flash sync speed up to 1/320 second (some of models may only reach to 1/250s or less, difference combination of models of flash and camera using may achieved difference flash sync speed).
- 2, Adding the Locking rings
- 3, Improved Flash / Shutter control Buttons
- 4, Working for more non Canon/Nikon cameras and single firing pin cameras --- ALL Standard Hot shoe DSLR Camera except Sony and Minolta.
- 5, Adding the power switch for single transmitter --- Set the power switch on TX (single transmit) or TRX (transmit-receive automatic switch) state according to different shooting requirement. When it used as wireless triggering transmitter and flash testing, set to "TX"; When it used as wireless triggering receiver, using shutter release or other extended functions, set to "TRX". set to OFF means turn off the power.

## Product Details

- **Brand:** YONGNUO
- **Compatible Mountings:** Canon
- **Camera Flash:** Hotshoe
- **Flash Sync Speed:** 1/320
- **Included Components:** Flash trigger and shutter release

## Images

![RF-603 II 16-Ch Wireless Flash Trigger for Canon 3-Pin Connection 1D/5D/7D/10D/20D/30D/40D/50D Cameras, 2.4GHz, 1/320sec Sync Speed - Image 1](https://m.media-amazon.com/images/I/7139fMKZC5L.jpg)

## Questions & Answers

**Q: I have a canon t5i with a 430EX II flash.. Would this work with this set up?**
A: It will work with any Canon camera that has a hot shoe. It does not do TTL flash, so you will have to set the flash manually

**Q: Will this work with Canon EOS T3 and T3i?**
A: Yes they will to with all Canon EOS/Rebel Cameras. The C designation is for Canon. These are the version III triggers.

**Q: using a 5D and a 580EX ll. in low light the autofocus assit beam does not work on the flash, in dim light. It should? it's got all the pins**
A: No

**Q: Will this work with the 430ex III canon flash?**
A: Yes Thank you

## Customer Reviews

### ⭐⭐⭐⭐⭐ works well and is affordable...
*by B***C on March 8, 2015*

simple and it works. These are manual triggers and I debated on purchasing a trigger set that was ETTL enabled for my Canon system but in the end I decided that I end up shooting almost exclusively off camera lighting in manual mode and these would do the trick. I have had zero issues with these triggering each other (when connected between my DSLR and my Canon 580 EXII). They work flawlessly.Also, I then decided that I needed another speedlight and went with the new YONGNUO 560 III for less than $100. This is a manual flash ONLY, but the cool part is that it doesn't need a RF 603II attached to it because it has a receiver for this trigger BUILT IN to the flash head. Now I have one trigger on top of my CANON DSLR, and the other attached to my Canon 580 EX II. The Yongnuo 560 III doesn't need a trigger and I can use a two speedlight setup like this. If I need a third light later on, I will most likely get another 560III to work with these triggers. The YN 560-TX controller works with these 560III flash heads and is good manually control your lighting groups, but seriously, right now my lighting is all within several feet of my reach and I'm not that lazy. The controller in this case would be a good idea if your speedlight is INSIDE of a softbox and you have to open the box to adjust the power, but otherwise with umbrellas and other types of light modifiers that you can access your speedlight easily, these RF 603II triggers are a simple, reliable, and effective way to trigger off camera flash.They arrived exactly as described, in new packaging, in a timely manner. I am very happy with my purchase.

### ⭐⭐⭐⭐⭐ I wasn't sure how good these radio remotes would be
*by F***M on November 26, 2014*

I wasn't sure how good these radio remotes would be, but they work perfectly with my setup using Sony mirrorless cameras (A7, a6000, RX10) using the Yongnuo YN-560 flashes with those set to manual, configuring power and zoom to my liking, usually shot through Wescott umbrellas. Having taken around 100 shots, since receiving these, there were no misfires using the "TRX" setting on the side switch. This is the setting for hotshoe mounting of the flash on the remote. When test firing the "TX" setting is used on the triggering unit and "TRX" on the flash mounted unit.I have enough confidence in these to have just placed an order for another set. The fact that these are multi-functional "transceivers" that can play either a receive or send function you get a lot of value for the dollar, especially when you consider that a pair of Pocket Wizard X units run $180. For me in buying two sets that's a $300 savings. Although I haven't had the opportunity to test the range, it is listed at 100m and I can't see my use ever getting to that range as I'm usually in a studio or at short range outdoors, using to either complement or overpower natural lighting.Again, for the enthusiast, or even the professional, you really won't believe the quality and performance of these thirty-dollar radio remotes. I even dropped one on a concrete basement floor with no visible damage and no impairment of function.

### ⭐⭐⭐ BE CAREFUL!!
*by R***E on April 28, 2015*

BE CAREFUL!!! These are great products when they work, however, while attached to my camera the safety pin became stuck in the down position. I was unable to remove the device from my camera & had to disassemble it to get it off. My camera's hotshoe was damaged in the process. Upon doing some research I learned this issue is not uncommon & many people have faced the same solution. I had to return them & am too afraid to give them another shot.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-04*