Superior build quality, including a metal foot for added strength
Approx. 20% faster recycling time, compared to previous 430EX
One-touch, quick-lock mechanism for easy attaching/detaching flash from camera
Full flash control possible on camera menu, with compatible EOS Digital SLR cameras
Virtually silent flash recycle
The flash head can be moved up from 0 - 90� (5 settings), left from 0 - 180� (7 settings) and right from 0 - 90� (4 settings)
Zoom flash head covers range of 24-105mm; maximum guide number 141 ft./43m at ISO 100
Specifications
Flash Type - Mode: E-TTL II, E-TTL, TTL
Compatible Cameras - All Canon EOS cameras; PowerShot G series cameras
Guide Number - 141 ft./43m (at ISO 100); flash head at 105mm zoom setting
Flash Coverage - Fixed condenser lens with inner zoom: (1) Auto Zoom, (2) Manual Zoom, (3) Wide Panel Zoom positions: 24mm, 28mm, 35mm, 50mm, 70mm, 80mm, 105mm; Indicated by numerals on the LCD's focal length display Image Size Zoom Control: With cameras compatible with auto zoom, it zooms automatically to match the camera's image size
Number of Flashes - Approx. 200 to 1,400, with AA-size Alkaline Batteries manufactured within the last three months or AA-size Ni-MH fully-charged batteries
Recycling Time - Approx. 0.1 to 3.7 seconds (AA-size Alkaline Batteries)/0.1 to 2 seconds (AA-size Ni-MH batteries)
Flash Range - At ISO 100, with EF 50mm f/1.4 For normal flash: Approx. 2.3-79.7 ft./0.7-24.3m For high sync speed (EF flash): Approx. 2.3-39.4 ft./0.7-12m
AF Assist Beam - Built-in; covers all focus points in EOS cameras up to 9 AF points Effective range: At center: Approx. 2.3-32.8 ft./0.7-10m Periphery: Approx. 2.3-16.4 ft./0.7-5m (in total darkness)
Custom Functions - Six user-selectable Custom Functions built-in; set on Speedlite's LCD panel
Power Source - Four AA-size Alkaline Batteries (6V); Four AA-size Ni-MH (4.8V)