Canon top-of-the-line flash for the EOS-system, Speedlite 580EX II takes the best features from existing models and adds functionality that enhances digital photography. A more powerful flash with a maximum guide number of 58/191 at ISO 100 in meters/feet (at 105mm focal length), faster recycling, more consistent color and enhanced controls are among the improvements that all photographers, especially those who shoot digital, will find useful.

The 580EX version II offers several improvements over the original 580EX version. It has been redesigned to match with the EOS-1D Mark III in terms of improved dust- and water-resistance, body strength, and the ability to control flash functions and settings from the camera menu (EOS-1D Mark III only). Other features include improved communication reliability through its direct contacts, and recycling time is both 20% shorter than the 580EX and is completely inaudible.

The flash supports all current versions of TTL, including evaluative E-TTL II. This is great for photographers that shoot high contrast or reflective subjects, like those encountered in wedding photography. Photographers can now capture every detail from the black of tuxedos to the white of wide smiles and wedding dresses.

Features

• Approx. 20% faster recycling time compared to 580EX
• Superior build quality, including a metal foot for higher rigidity

• Max. Guide No. 58 at 105mm setting (GN 190, feet)
• Auto conversion of flash coverage with compatible digital SLR cameras
• White Balance info communicated instantly to compatible digital SLR cameras
• Full swivel, 180° in either direction

• AF-assist beam, compatible with all AiAF points on every EOS SLR
• Dust and water resistance to match the EOS-1D Mark III

Specifications

Compatible Cameras	E-TTL operation with all EOS digital SLRs; PowerShot G2, G3, G5, G6, and Pro1; and the following EOS film cameras - EOS-1v, EOS-3, Elan 7N series, Elan 7 series, Elan II series, Rebel T2, Ti, K2, GII, G. TTL operation with all other 35mm EOS SLRs, and Canon T90.
Guide Number	190 feet (at ISO 100) / 58 (meters); flash head at 105mm zoom setting
Number of Flashes	Approx. 100 to 700, with fresh AA-size alkaline batteries
Recycling Time	Approx. 0.1 to 6 seconds, with fresh AA-size alkaline batteries
Flash Range	(At ISO 100, with 50mm f/1.4 lens at f/1.4) - Approx. 1.6 to 98.4 feet / 0.5 to 30m
AF Assist Beam	Built-in; covers all focus points in EOS cameras with 1, 3, 5, 7, 9, or 45 AF points; Distance range - 2 to 32.8 feet (0.6 to 10m) at center; 2 to 16.4 feet (0.6 to 5m) at periphery
Custom Functions	Fourteen Speedlite Custom Functions built-in; set on Speedlite's LCD panel
Power Source	Four AA-size batteries - alkaline, lithium, or rechargeable Ni-MH usable
External Power Source	External power supply - compatible with Dust- and water- Resistant External Power Pack, Canon battery pack CP-E3 and Transistor Pack E
Dimensions	3.0 x 5.3 x 4.5 inches /76 x 134 x 114mm
Weight	13.2 oz./375g, without batteries (4 AA alkaline batteries add 3.5 oz./100g)