• High output with maximum guide number 43 at 105mm setting (ISO 100, metres)
• E-TTL II evaluative flash metering for critically accurate exposure
• Autozoom and colour temperature information for improved flash with selected digital SLR cameras
• Built-in slave with wireless flash compatibility for use in multiple flash set-ups

POWERFUL AND EFFICIENT
High power flash output with maximum guide number of 43 at 105mm setting (ISO 100, metres)
- E-TTL II flash metering using lens distance information for more evenly lit and natural looking photos
- Highly efficient power supply design providing up to 40% improvement in flash recycle time
- Autozoom control with selected digital SLR cameras to match the flash head to the effective focal length
- Colour temperature information transmission with selected digital SLR cameras ensuring optimal colour
- AF-assist beam compatible with EOS multi-point AF systems utilising up to 9 AF points for accuracy

ADVANCED DESIGN
- Illuminated LCD screen providing simple access and visibility of advanced Speedlite settings
- Built-in 'slave' receiver allowing use as part of wireless flash system containing multiple Speedlites
-Advanced features including Manual flash, Flash exposure compensation and 2nd curtain-sync flash
- Manual flash output between 1/1 to 1/64 stop, adjustable in one stop increments
- 6 Custom Functions permitting customisation of operation to suit personal preferences
- Swivelling head with stops at 0, 60, 75, 90, 120, 150, 180 degrees (left) or 0, 60, 75, 90 degrees (right)
- Flexible bounce head with stops at 0, 45, 60, 75 and 90 degrees

ACESSORIES
- Soft Case for Speedlite 430EX
- Speedlite Bracket SB-E1
- Wireless transmitter ST-E2