YONGNUO YN600EX-RT II Flash Speedlite for Canon - High Power TTL

In this review the YN600EX-RT II is judged as a strong, budget-conscious alternative for photographers who need a powerful, flexible Speedlite that works in Canon RT systems. The bottom line: it delivers high guide number output and full E-TTL compatibility with both on-camera master and remote slave roles, plus high-speed sync to 1/8000s, making it a practical choice for event, portrait and outdoor shooters who want advanced flash control without a manufacturer premium.

Key Features

• Canon E-TTL compatible: Delivers automatic exposure control with Canon camera bodies for reliable TTL performance in mixed lighting.
• RT System master and slave: Can act as an on-camera master unit or remote slave in Canon RT setups and supports grouping for complex multi-flash arrangements.
• High guide number and HSS: GN60 at ISO100 and 200mm plus high-speed sync lets shooters freeze action and use wide apertures in bright conditions.
• Wide zoom coverage: Auto and manual zoom from 20 to 200mm provides flexible beam control for wide-angle or long-tele use without extra modifiers.
• USB firmware upgradeable: Firmware updates via USB keep the unit current and compatible with new triggers or features released by the maker.
• Optical master compatibility: Works with YONGNUO, Canon, and Nikon optical master signals and supports S1/S2 preflash cancel modes for optical setups.

Who It's For

The YN600EX-RT II is aimed at advanced amateurs and professionals who want a powerful TTL flash that can function as both master and remote in Canon RT systems and who value high-speed sync up to 1/8000s. It suits wedding and event shooters who need GN60 power and flexible grouping, and portrait photographers who shoot outdoors and require wide aperture control.

Those who should look elsewhere include photographers who demand brand-new official manufacturer support or slightly longer battery runtimes from OEM units, and users who require built-in radio triggers incompatible with Canon RT-external radio triggers can be used but may complicate workflow.

Pros & Cons

Pros

• Powerful GN60 output provides reliable reach for event and outdoor work.
• Full E-TTL and HSS capability gives flexible exposure control in varied lighting.
• Can act as RT master or remote and supports grouping for multi-flash setups.

Cons

• Battery life is reported as mixed by users and may require fresh batteries or frequent replacement in heavy use.

Specifications

Compatibility	Canon E-TTL, Canon RT System, YONGNUO and Nikon optical master
Guide Number	GN60 at ISO100, 200mm
Sync Speed	High-speed sync to 1/8000s
Zoom Range	AUTO, 20~200mm
Wireless Modes	RT master/slave, Gr grouping, S1 and S2
Firmware	USB firmware upgradeable

Our Verdict

The YN600EX-RT II is a compelling value for photographers who need strong power, full E-TTL and advanced wireless master/slave roles without paying brand-premium prices. Despite mixed reports on battery life, its GN60 output, HSS to 1/8000s and USB upgrade path make it a practical, capable flash for event and portrait shooters seeking flexibility and control.

Frequently Asked Questions

Does it work as a master unit in Canon RT systems?
Yes, it can be used as an on-camera master unit and as a remote slave in Canon RT systems and supports grouping modes.

Can it do high-speed sync?
Yes, the unit supports high-speed sync TTL with the highest synchronous speed up to 1/8000s.

Is firmware updatable?
Yes, the YN600EX-RT II includes a USB interface for firmware upgrades from the maker's website.