0x with optional battery pack simplifies the menu system for faster operation . Fulfillment by Amazon ( FBA) is a service we offer sellers that lets them store their products in Amazon' s fulfillment centers ship, we directly pack provide customer service for these products. SN600SC are the first on and off camera ETTL flash model available from Shanny. Canon speedlite 600ex rt flash manual. New Chinese flash radio trigger manufacturer Shanny have kicked off to an impressive start with their second speedlite model the SN600SC now available. This revision improves continuous flash performance by 1. Complete with built- in radio transmission wireless functionality, the Speedlite 600EX II- RT sits at the top of Canon' s on- camera E- TTL / E- TTL II compatible flash lineup with a powerful guide number of 197' at ISO 1mm. Hi Alexander, Thanks for the feedback. I’ ve got 4 of them here now clicks), I’ m not really seeing the dials are actually looser in the detents ( , but they are definitely harder to adjust ( kind of sticky) than either the Canon 600EX- RT the YongNuo YN600EX- RT dial. Just one of a number of full TTL for both Canon , HSS enabled Shanny flash models soon to be released Nikon.