Viltrox JY-680A Master Slave Flash for Canon Nikon Pentax Olympus DSLR Camera
Reflection flash—Can reduce the shadow behind the body was taken to achieve more naturally photography effect.
Manual flash— Will flash output Settings for 1/128 output to 1/1 the output to a third grade increase or decrease, used a hand-held metering and to decide the flash output
33 (ISO100 in meters/feet).
Flash duration: 1/1050s (under output 1/1)
Wireless transmission rang: Indoors 12-15m/39.4-49.2ft, Outdoors 8-10m/26.2-32.8ft
Reception angle: 40° horizontal, 30° vertical