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SKU: 44535
1 x Flash cobra

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Complete with built-in radio transmission wireless functionality, the Speedlite 600EX-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 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. 

For added coverage and functionality, the flash's zoom head can reach from 20-200mm, with the option for wide 14mm coverage when the built-in diffusion panel is used. 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-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. 

Other capabilities of the 600EX-RT include a stroboscopic mode as well as high-speed, first and second curtain sync settings for more control over your image's final look. The flash is powered by 4 AA batteries which provide a recycle time of 0.1-5.5 seconds, though it does have a port for an optional external power pack. It comes with a color filter holder with case, a light orange filter, a dark orange filter, a mini stand, and a Speedlite case.

- AF assist beam works with up to 61-point High Density Reticular AF system

- There are 18 custom functions and 7 personal functions for maximum customization

- Optical transmission is available in addition to radio transmission

- Quick Flash settings speeds up recycle time and flash duration

- Manual power settings from 1/1 to 1/128 power in 1/3-stop increments

- Flash color temperature information is automatically transmitted to the camera

- Automatic power off function

- Flash exposure compensation from -3 to +3 EV in 1/2 or 1/3 EV steps

- PC sync port and remote release terminal for off-camera triggering

- Flash duration of 1.8 ms or less, or 2.3 ms or less in Quick Flash mode

- Stroboscopic setting from 1-500 Hz, or 1-199 Hz during optical transmission wireless shooting

- Wireless flash ratio control from 1:8 to 1:1 to 8:1 in ½-stop increments

- Compatible with ST-E3 Speedlite Transmitter

- Approximately 100-700 flashes with AA alkaline batteries

- Locking metal foot

- Bracket mounting hole

- Built-in retractable bounce card

in the box

- SCH-E1 Color Filter Holder for 600EX-RT

- SCF-E1 Color Filter Set for 600EX-RT

- Color Filter Holder Case

- Mini Stand

- Speedlite Case





Guide No.

197' (60.05 m) ISO100 at 200 mm position

Exposure Control


Angle of Coverage

94° - 12°

Wide-Angle Adapter: 114°


1/1 - 1/128

TTL Dedication


Bounce Head

-7° to +90°

Swivel Head



14 mm - 200 mm (Full frame)

Distance Range

1.64 to 98.43' (0.5 to 30 m) at f/1.4

Zoom Head

Full frame: 20 mm - 200 mm

Off Camera Terminal

PC, Proprietary

Recycle Time

Approximately 0.1 - 5.5 seconds

Flash Duration

0.0018 - 0.0023 sec @ Full Power

Flash-ready Indicator



-3 EV to +3 EV (in 1/2 and 1/3 EV steps)

Wireless Transmission

Method: RF

Distance: Up to 98.43' / 30 m

Method: Optical pulse

Distance: Up to 49.21' / 15 m

Wireless Communication Channels

4 Channels

Wireless Groups

5 Groups

Power Source

4x AA Alkaline, Lithium, Rechargeable Ni-MH Batteries

Dimensions (WxHxD)

3.1 x 5.6 x 4.9" / 80.0 x 143.0 x 125.0 mm


14.99 oz / 425 g without batteries

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