http://www.adorama.comCanon Speedlite 600EX-RT is engineered to provide a new level of performance and reliability for professional flash photography with today's most advanced DSLRs. With wireless two-way radio communication, the Speedlite 600 EX-RT allows photographers to expand their creativity using wireless speedlites with the reliability of radio triggering. Related Products at Adorama:Canon Speedlite 600EX-RT, Shoe Mount Flash http://www.adorama.com/CA600EXU.html?utm_source=Youtube&utm_medium=Social&utm_content=Video&utm_campaign=Speedlite%20600EX-RT%3A%20Product%20Overview%20with%20Marcin%20Lewandowski%20Photographs by Marcin LewandowskiLike, share, and comment on the video below...let's get the conversation started!If you have questions, please share them below.