Optical: Unlimited / Unlimited
Radio: 15 / 15 (16 in total of any combination)
Number of Groups
3 (A/B/C) / 5 (A/B/C/D/E)
Number of Channels
4 / Auto, 15
Remote Shutter Release
Yes
Flash Head Movement
Up
45, 60, 75, 90, 120°
Down
7°
Left
60, 75, 90, 120, 150 and 180°
Right
60, 75, 90, 120, 150 and 180°
AF Assist
AF-Assist Beam
Yes
Number of AF Points Supported
1 - 191
AF-Assist Beam Type
Infra-red / Emitting small series of flashes
Power Source
Battery
1 x Rechargeable Lithium-ion Battery
Battery Level Indicator
Yes - 5 levels / percentage
Minimum Recycling Time
Approx. 0.1 - 0.9 sec
Number of Flashes (Fully Charged Battery)
Approx. 335 (at full power) to 2345
External Power Supply
Yes - optional Compact Battery Pack CP-E4N
Construction
Dust and Water Resistance
Yes
Active Cooling
Yes - internal fan
Mounting Foot Material
Metal
Miscellaneous
Custom Function
14 (9 personal functions)
Flash Settings from Camera Menus
Yes
External Flash Exposure Sensor
Yes
PC Terminal
Yes
Accessories (Included)
Battery Pack LP-EL
Battery Charger LC-E6E
Speedlites Case
Mini Stand
Bounce Adapter SBA-EL
Colour Filter SCF-ELOR1
Colour Filter SCF-ELOR2
Accessories (Optional)
Speedlite Transmitter ST-E3-RT (radio)
Speedlite Transmitter ST-E2 (optical)
EX series Speedlites with receiver function
Compact Battery Pack CP-E4N
Battery Magazine CPM-E4 (for use with CP-E4N)
Off-Camera Shoe Cord OC-E3
