Yongnuo YN600EX-RT II Speedlite Review

Yongnuo YN600EX-RT II Review

Yongnuo YN600EX-RT II view of LCD control panel
Yongnuo YN600EX-RT II


Yongnuo’s YN600EX-RT II is basically a clone of the Canon 600EX II-RT that retails for less than a quarter of the price. It offers full Canon RT radio communication as well as Canon EX optical communication. This speedlite is a game changer when it comes to high-end tech at a budget price. Introduced February 2017

Related post: Yongnuo YN600EX-RT II vs Canon 600EX II-RT

Guide Price £110 / US$138

Amazon (UK) / B&H Photo (US) / Adorama (US) / Amazon (US)


The Yongnuo YN600EX-RT II is compatible with Canon’s 2.4GHz RT radio triggering system and E-TTL / E-TTL II metering. It works with the Yongnuo YN-E3-RT II radio transmitter as well as the Canon ST-E3-RT radio transmitter. It can also be used with the Canon 600EX II-RT and Canon 430EX III-RT as both radio slave and master.

Front side view


Maximum Guide Number 60m @ 200mm & ISO 100
Comparative Guide Number 39m @ 35mm & ISO 100

Zoom Head

Zoom head: Yes
Focal length coverage: Auto, 20-200mm
Coverage with flip-down diffuser: 14mm
Auto zoom for sensor size: Yes
Flash bounce card: Yes

LCD display in ETTL slave mode

Flash Head Tilt & Swivel

Up: 45, 60, 75 and 90°
Down: 7° (for shooting close subjects in the range 0.5 to 2m)
Left: 60, 75, 90, 120, 150 and 180°
Right: 60, 75, 90, 120, 150 and 180°

Manual Exposure

Manual / output settings: Yes – 1/1- 1/128
Manual steps: 1/3 stop intervals

ETTL Exposure

Canon’s E-TTL II auto metering system with flash exposure compensation (FEC), flash exposure lock (FE lock) and flash exposure bracketing (FEB) 

Flashgun front side view showing battery compartment

Wireless Communication

Radio Wireless (RF) 2.4GHz
Fully compatible with Canon’s RT radio wireless system
Transmitter maximum range approximately: up to 100m
No. of groups: 5 (A, B, C, D & E)
No. of channels: 15 channels and 10,000 wireless IDs
Master/Slave: Can act as both a master and a slave unit

Optical Wireless (IR)
Can support both Canon’s and Nikon’s optical wireless in slave mode.
Line-of-sight communication, fully compatible with Canon’s EX optical wireless.
Transmitter maximum range approximately: Indoors: 20-25m, Outdoors: 10-15m
No. of groups: 3 (A, B & C)
No. of channels: 4
Master/Slave: Can act as both a master and a slave unit (Canon) and slave (Nikon)

Auto-Focus (AF) Assist 

AF-assist beam: Yes
Number of AF points supported: 1 to ? (info not provided)
AF-assist beam type: Infra-red
Beam range: 0.6-10m at centre, 0.6 to 5m at periphery

YN600EX-RT II and accessories that include soft pouch, mini stand and manual

Other Features

High speed sync (HSS): Yes up to 1/8000 sec
Second-curtain flash sync: Yes
Modelling flash: Yes (fired with camera’s depth-of-field preview button)
Multi (stroboscopic) flash: Yes
Colour temperature info communication: Yes
Remote shutter release: Yes, linked shooting with radio wireless
Custom function: 15 (6 personal functions) 
Flash settings from camera menus (with compatible cameras only): Yes
Optical slave capability (S1, S2): Yes
Overheat protection: Yes
PC terminal: Yes
USB socket for firmware updates: Yes

Batteries & Recycling Time

Battery: 4 x AA batteries (alkaline or rechargeable Ni-MH. Lithium not recommended)
Recycling time: Approx. 0.1 to 3 sec
Number of flashes (approx): 100-1500 with AA alkaline batteries
Flash duration: 1/200-1/20000sec
Flash Colour temperature: 5600K
Optional external power supply: Yes

Build Quality

Dust and water resistance: Yes
Mounting foot material: Metal
Size: 62x78x214mm (extended state)
Weight: 430g (excluding batteries)

Compatible accessories: 


Canon 600EX ii-RT

Yongnuo YN600EX-RT II Manual

Yongnuo YN600EX-RT II manual download pdf format
Yongnuo YN600EX-RT II Manual pdf format (opens external link to B&H Photo website)

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Page checked and updated on 25 September 2020