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Canon Speedlite 600EX II-RT Latest 2021 Update Review

Canon Speedlite 600EX II-RT: Flash units are useful for people who own a professional digital camera, especially those with a DSLR who would like to make the most of the range and versatility of lenses that are available to them.  

Canon Speedlite 600EX II-RT

The Canon 600EX II-RT Speedlite sits at the top of Canon’s range of flashes and has all the features that you’d expect from a quality bit of kit like this including a powerful performance, fast frame-rate shooting, wireless shooting via radio and optical transmission, 20-200mm zoom flash head, E-TTL II auto exposure control, high-speed sync and an excellent infra-red auto-focus assist beam that supports up to 65 AF points.

What’s it All About? 

Complete with built-in radio transmission wireless functionality, the Speedlite 600EX II-RT sits at the top of Canon’s on-camera E-TTL / E-TTL II compatible flash lineup with a powerful guide number of 197′ at ISO 100 and 200mm.

This revision improves continuous flash performance by 1.1-1.5x, or up to 2.0x with an optional battery pack.

The two-way 2.4 GHz radio system provides added reliability and a range up to 98.4′ among up to 5 groups with a total of 15 individual Speedlites.

This system also does not need direct line-of-site like traditional optical-based transmission and will work through obstacles.

Also, the unit can tilt from -7 to +90° and rotate 180° either left or right for complete bounce capabilities.

On the back of the 600EX II-RT is a backlit dot-matrix LCD panel that displays the status and allows users to easily access and change settings.

Additionally, the flash is durable with a redesigned contact construction and improved dust and water-resistant sealing 

Canon Speedlite 600EX Benefits 

  • Shoot faster and for longer 
  • Reliable performance on- and off-camera 
  • Creative off-camera lighting from any direction using radio wireless control 
  • Powerful performance, with guide number 60 (m, ISO100) 
  • Easy to use, with intuitive controls and an information display 

Detailed Features

it is reliable, weatherproof and performs well in the most demanding of situations making it the top choice for event and wedding photographers.

Detailed Features

 Reliable performance on- and off-camera 

An improved flash-control algorithm helps prevent overheating, and Quick Flash allows the Speedlite 600EX II-RT to fire even if a full charge hasn’t yet been achieved, so you won’t miss that unique moment.

The Speedlite 600EX II-RT is weatherproofed to the same level as the EOS-1D X Mark II, so you can keep shooting even when conditions get tough.

A Bounce Adapter is included for softer lighting when shooting portraits and clip-on colored filters help when balancing flash with ambient light.


Creative off-camera lighting from any direction 

Simulate light coming from any direction by positioning the Speedlite 600EX II-RT off-camera. Fire it from up to 30m away, using built-in radio or optical control and an optional wireless trigger, the Speedlite Transmitter ST-E3-RT.

Multiple Speedlite 600EX II-RT can be used together (individually or in groups) and can be combined with other Canon flashes, like the Speedlite 430EX III-RT.

Powerful Performance, With Guide Number 60

The Speedlite 600EX II-RT packs plenty of power, so you never be left frustrated. It’s ideal for lighting large spaces and bouncing light from walls and ceilings for a softer, more natural result.

A Bounce Adapter is included, which softens the flashlight even more. The unit recycles silently in as little as 3.3s, and the optional CP-E4N battery pack shortens this time even further.

Easy to Use With Intuitive Controls

A customizable control dial allows quick adjustments when working under pressure, while a large, illuminated display shows relevant shooting information at a glance.

What’s in the box 

  • Speedlite 600EX II-RT Flash 
  • Soft case Mini stand 
  • Colour Filter SCF-E3OR2 
  • Colour Filter SCF-E3OR1 
  • Bounce Adapter SBA-E3 
  • User Manual 
  • Warranty Card 

Dust- and water-resistant body 

Designed to maintain the high standard of dust- and water-resistant performance of Canon’s EOS-1D cameras.  


The Canon Speedlite 600EX II-RT is a high-end flash unit built for professionals and hobbyists alike.

Overall, we believe that it would make a great investment for anyone looking for the best.

Offering 1.1 and 1.5 times faster flash speeds than it’s the predecessor

Frequently Asked Questions

What is Canon Speedlite used for?

If the optical receiver is active, a strobe will fire when that sensor receives light from or “sees” another strobe fire. Essentially, you can use a Speedlite on-camera to trigger your studio strobes using the optical receiver built into them.

How many watt seconds is a canon 600EX?

Think of the 600EX as having a total power output of 75-ish watt seconds, compared to the 640 watt seconds of the Einstein

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