Viltrox JY-610 II On-camera Speedlight Flash For Nikon Canon DSLR Camera Features:    JY610 II is a mini speedlight flash unit which is light weight on any camera.  Its guide number is GN 27 (in focal length 50mm at ISO 100 in meters).  The flash can be moved 90 upward、 it has 0、 60、 75、 90 degree of vertical angle.  Exposure control system: M flash、 Multi flash、 S1、 S2(slave).  Adopts LCD panel ensure easily operation and fixed knob.  Provided with stroboscopic function、 this process could catch several images of moving object in one shot.  With a unique feature in manual mode: the GN of the flash unit can be adjusted by adjusting the EV on the cameras.  Quick safety lock is provided and can be mounted on any standard hot shoe.  Its small size can make it possible even to carry it in your pockets.   Specification:                          Type         On-camera speedlite               Compatible Cameras         Standard hot shoe interface camera               Guide No         27(ISO 100 in meters \/ feet)               Effective Flash Range         (with EF50mm f\/1.4 lens at ISO 100) 0.6-20m               Exposure Control System         M flash、 Multi flash、 S1、 S2(slave)               Light Emission         the flash can be moved 90 upward、 it has 0、 60、 75、 90 degree of vertical angle                Effective Flash Range         0.7-19.3m(quick flash: 0.7-11.1m)               Battery         2 X AA batteries(not included)               Recycling Time         Approx. 0.1-4sec        Package Included:   1 X Mini Flash  1 X Bag  1 X User Manual  Detail Pictures: