The Yongnuo YN622C TTL flash trigger tested and reviewed by photographer Phil Steele. See links below for pricing: Price the Yongnuo YN-622C Wireless TTL Flash Trigger on Amazon.com ttp://www.amazon.com/gp/product/B009... Phottix Odin Pricing on Amazon.com http://www.amazon.com/gp/product/B00A...