Speedlite 580EX II

The Canon Speedlite 580EX II is a top-of-the-line external flash designed for Canon EOS DSLR cameras, delivering a maximum guide number of 190 feet at ISO 100 with a 105mm focal length setting. This unit features a motorized zoom head that ranges from 24mm to 105mm with automatic adjustment, full TTL and E-TTL II compatibility for precise flash metering across all apertures, and professional-grade controls including high-speed sync, second-curtain sync, and flash exposure lock. The 580EX II incorporates improved dust and water resistance with a reinforced metal hot shoe, faster recycling time that is nearly silent, and supports wireless TTL triggering when paired with other compatible flashes or a Canon transmitter. Operation is straightforward with four AA batteries powering the unit for approximately 100 to 700 flashes per set, while variable power settings in 1/3-stop increments and 14 custom functions provide extensive creative control for photographers ranging from professionals to advanced enthusiasts.