The Yongnuo YN600EX-RT II is one the the best Flash from Yongnuo.

This is a really powerful flash (Guide Number = 60m or 197ft) that should please all your needs like wedding photography, culinary photography, or just for all day photos.

The YN600-EX-RT II is compatible with Canon wireless radio RT system that is used by the similar flash from Canon (Canon EX 600 II-RT). By the way, RT means Radio Transmission.

The flash is TTL (E-TTL), and support “Manual” and “Multi” modes, as well as High-Speed Synchronization (HSS) up to 1/8000s.

The recycling time can take up to just two seconds (2s). It support external power supply as well as four AA batteries.

Built with a USB port, users can update the flash’s firmware easily from their computer, using a USB cable, whenever Yongnuo releases new firmware updates. You can check our summary firmware page and download the latest Yongnuo firmware for all products (flashes, lenses, triggers, etc.)

The Yongnuo YN600-EX-RT II is often see as an ‘imitation’ of the top rated Canon EX 600 II RT but for a cheaper price.

Here is a side by side picture of the Yongnuo YN600EX-RT II along with the Canon EX-600-II RT:

Name:	Yongnuo YN600EX-RT-II	Canon 600EX-II-RT
GN:	60@ISO100, 200mm	60@ISO100, 200mm
TTL:	Yes	Yes
HSS:	Yes	Yes
Firmware:	through USB	through Canon support
Price:	$138 (as of Jan 5th, 2021)	$499 (as of Jan 5th, 2021)
Amazon:	View price	View price

Modes of the YN600EX-RT II:

The YN600EX-RT II can be used several ways. The main pros is that it is fully compatible with wireless triggering RT system from Canon. He can be used as a master flash and command several groups of slaves flashes from the Canon EX family as well as most of Yongnuo flashes.

Let’s see what you can do with the different modes of your YN600EX-RT II yongnuo flash.

The ETTL mode:

Short Press the [MODE] button until you reach the “ETTL” mode. This mode allows you to let the flash decide the output power it needs to correctly expose the photography. You can adjust it in case you want to overexpose or underexpose your scenery.

The Manual mode:

Short Press the [MODE] button until you reach the “M” mode. This mode allows you to manually setup the flash output, among other settings.
You can adjust the output range from 1/128 to 1/1 (1/1 is the full power, whether 1/128 is the lowest). With fine adjustment of 1/3EV you can have up to 22 levels of light in total.

The Multi Mode (or Stroboscopic mode):

Short Press the [MODE] button until you reach the “Multi” mode. This Multi mode allows you to to fire the flash multiple times per photo (shutter release). This is a creative mode that allows you to do many original and inventive pictures.

Similar to the “M” mode, you can choose the flash output from 1/1 to 1/128 by pressing the [Multi] button. Then you can select the frequency (number of flash per second) by clicking the [Hz] button. You can choose any number between 1 and 100. 1 means you will get one flash per second whereas 100 mean you will get 100 flashed per second, yeah this is a lot.

With Customs Settings functions (Fn) you can save your own settings in the menu and quickly use them on demand.

HSS: High-Speed Synchronization

HSS resolve a problem that often occurs in flash photography. Without HSS, you are limited by your camera synchronization speed. And when you go over it (above 1/250s – 1/320s), you start to see the curtain on the picture. High Speed Photography allows you to trigger the flash at a speed up to 1.8000s.

You can read this great article about HSS on this digital photography school article. (Opens in a new tab)

Here are a few more official pictures from Yongnuo:

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Upgrading the YN600EX-RT II’s Firmware:

Upgrading your firmware allows you to get the latest updates and features for your Yongnuo products. Yongnuo devices often include a USB port so you can easily go through the update process.

What you need to do to update the firmware:

1. go to the firmware page then download and install the Yongnuo Update Software on your machine. You will find further instruction on that page.
2. Go to the YN-600EX-RT II section and download the latest firmware available.
3. Decompress the downloaded archive.
4. Follow the instructions on the software and on the attached How_to file.

Once your flash has been updated, try if the problem is fixed, or if the new features works as described.

What people say about the YN600EX-RT II:

We checked on the Internet to see what were the most liked and disliked elements and here what’s came out:

“[…]Entirely compatible with my Canon 5D Mark IV, really good quality build. Buttons feels great, almost like top brands. Great product for the price.[…]”

[…] This flash is pretty much an exact replica of the canon version, which is like 4 times the price. […]

“[…]Best of all, you can get 3 of these and the trigger for LESS than ONE Canon 600 EX-RT speedlight”

[…]”Accurate, powerful, wonderful flash. Pairs perfectly with the YN-E3-RT wireless transmitter on my Canon 80D”[…]