Canon Speedlite 550EX Flash Specifications

SpecificationsCanon Speedlite 550EX Flash
  Canon Speedlite 550EX Flash
Power: Guide No (ISO 100) 180' / 55m (at 105mm)
 
Angle of Flash Coverage  
Auto 24-105mm
Manual 24mm, 28mm, 35mm, 50mm, 70mm, 80mm, 105mm
With Diffuser 17mm
 
AF Assist Beam  
AF Assist Beam Type Near-infrared light pattern projection
AF Assist Beam Points 1 to 45
AF Assist Beam Min Focal Length 24mm (APS-C 15mm)
AF Assist Beam Range – Center 2.0-33' (0.6-10m)
AF Assist Beam Range – Periphery 2.0-16' (0.6-5m)
 
Flash Exposure Modes  
Auto Exposure Standards Supported E-TTL II/E-TTL
External Auto Flash Exposure Sensor N
Manual Flash Exposure Y
 
Features Controllable from Flash  
High Speed Sync Y
Flash Exposure Lock (FEL)
Flash Exposure Compensation (FEC) Y
Flash Exposure Bracketing (FEB) Y
Second Curtain Flash Sync
Modelling Flash Y
Color Temperature Info Communication N
Supports Flash Settings by Camera Menu
(Enables many options not available directly on the flash)
Custom Functions 6
Personal Functions
 
Wireless Flash Capabilities  
Wireless Flash Transmitter Capability Y
Wireless Transmission Type Optical
Transmitter Max Range – Indoors 39.4-49.2' (12-15m)
Transmitter Max Range – Outdoors 26.2-39.4' (8-10m)
Wireless Flash Slave Capability Optical
Wireless Flash Groups 3
Wireless Flash Channels 4
Remote Shutter Release Capability N
 
Flash Head Movement Range  
Flash Head Movement Up 45, 60, 75 and 90°
Flash Head Movement Down
Flash Head Movement Left 60, 75, 90, 120, 150 and 180°
Flash Head Movement Right 60, 75, 90°
 
Flash Features  
Dust and Water Resistance N
PC Terminal
 
Power Source  
Power Source 4x AA
Number of Flashes (approx) 100 - 700
Recycling Time – NiMH (approx) 0.1 - 2.5 sec.
Recycling Time – Alkaline (approx) 0.1 to 4 sec.
External Power Source
 
Size  
Size (WxHxD) 3.1 x 5.4 x 4.4"
(80 x 138 x 112mm)

Weight 14.2 oz (405g)
 
Accessories  
Compatible Accessories Off-camera shoe cord OC-E3
EX Series Speedlite with Optical Slave function
Dedicated Flash Bracket
 
Compatible Cameras All Canon EOS cameras
PowerShot G series cameras
Review Canon Speedlite 550EX Flash
 
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