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Canon Speedlite 550EX Flash Compared to the Canon Speedlite 430EX II Flash
| Specifications | Canon Speedlite 550EX Flash | Canon Speedlite 430EX II Flash |
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| Power: Guide No (ISO 100) | 180' / 55m (at 105mm) | 141' / 43m (at 105mm) |
| Angle of Flash Coverage | ||
| Auto | 24-105mm | 24-105mm |
| Manual | 24mm, 28mm, 35mm, 50mm, 70mm, 80mm, 105mm | 24mm, 28mm, 35mm, 50mm, 70mm, 80mm, 105mm |
| With Diffuser | 17mm | |
| AF Assist Beam | ||
| AF Assist Beam Type | Near-infrared light pattern projection | Near-infrared light pattern projection |
| AF Assist Beam Points | 1 to 45 | 1 to 9 |
| AF Assist Beam Min Focal Length | 24mm (APS-C 15mm) | |
| AF Assist Beam Range – Center | 2.0-33' (0.6-10m) | 2.3-32.8' (0.7-10m) |
| AF Assist Beam Range – Periphery | 2.0-16' (0.6-5m) | 2.3-16' (0.7-5m) |
| Flash Exposure Modes | ||
| Auto Exposure Standards Supported | E-TTL II/E-TTL | E-TTL II/E-TTL |
| External Auto Flash Exposure Sensor | N | N |
| Manual Flash Exposure | Y | Y |
| Features Controllable from Flash | ||
| High Speed Sync | Y | Y |
| Flash Exposure Lock (FEL) | Y | |
| Flash Exposure Compensation (FEC) | Y | Y |
| Flash Exposure Bracketing (FEB) | Y | N |
| Second Curtain Flash Sync | Y | |
| Modelling Flash | Y | Y |
| Color Temperature Info Communication | N | Y |
| Supports Flash Settings by Camera Menu (Enables many options not available directly on the flash) |
Y | |
| Custom Functions | 6 | 9 |
| Personal Functions | ||
| Wireless Flash Capabilities | ||
| Wireless Flash Transmitter Capability | Y | N |
| 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 | Optical |
| Wireless Flash Groups | 3 | 3 |
| Wireless Flash Channels | 4 | 4 |
| Remote Shutter Release Capability | N | N |
| Flash Head Movement Range | ||
| Flash Head Movement Up | 45, 60, 75 and 90° | 45, 60, 75 and 90° |
| Flash Head Movement Down | 7° | |
| Flash Head Movement Left | 60, 75, 90, 120, 150 and 180° | 60, 75, 90, 120, 150 and 180° |
| Flash Head Movement Right | 60, 75, 90° | 60, 75, 90° |
| Flash Features | ||
| Dust and Water Resistance | N | N |
| PC Terminal | N | |
| Power Source | ||
| Power Source | 4x AA | 4x AA |
| Number of Flashes (approx) | 100 - 700 | 200 - 1,400 |
| Recycling Time – NiMH (approx) | 0.1 - 2.5 sec. | 0.1 to 2 sec. |
| Recycling Time – Alkaline (approx) | 0.1 to 4 sec. | 0.1 to 3.7 sec. |
| External Power Source | ||
| Size | ||
| Size (WxHxD) | 3.1 x 5.4 x 4.4" (80 x 138 x 112mm) |
2.8 x 4.8 x 4.0" (72 x 122 x 101mm) |
| Weight | 14.2 oz (405g) | 11.6 oz (330g) |
| Accessories | ||
| Compatible Accessories | Off-camera shoe cord OC-E3 EX Series Speedlite with Optical Slave function |
Off-camera shoe cord OC-E3 |
| Dedicated Flash Bracket | SB-E2 | |
| Compatible Cameras | All Canon EOS cameras PowerShot G series cameras |
All Canon EOS cameras PowerShot G series cameras |
| Review | Canon Speedlite 550EX Flash | Canon Speedlite 430EX II Flash |
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