Viltrox JY-610 On-camera Mini Flash Speedlite for Canon EOS M M2 650D 600D 1200D Sony A7R A7K NEX-6L, Other DSLR Cameras 100% brand new and high quality JY610 is a mini speedlight flash unit which is light weight on any camera. Flash head adjustable 0-90 degrees,more easy and convenient to use. Its guide number is GN 27 (in focal length 50mm at ISO 100 in meters). Search EverTrust for more choices!