The Phottix Mitros flash is a high-end TTL flash designed to compete with Canon's 580EX II at well over half the price. Phottix also makes an SB-replacing-Mitros for Nikons as well. The Mitros for Canon shares many features with the 580EX II, including high-speed sync and built-in IR triggering with Master and Slave modes. But is the Mitros mighty enough to match one of Canon's most beloved flash models?