Mcoplus MCO910 Flash 1\/8000s HSS Master i-TTL Speedlite for Nikon SB910 D7100 D7000 D5300 D5200 D5100 D800 D600 Features:  The MCO910 is a high-performance CLS-compatible speedlight with a large guide number of 60(ISO 100\/M) (111.5\/157.5 ft.)(at the 35mm zoom position for Nikon FX format with standard illumination pattern)   -On-camera、 i-TTL II\/i-TTL\/TTL auto flash speedlite -Support High speed sync、 Front-curtain sync and rear-curtain sync -Maximum GN.60 (105mm、 ISO 100 meter) -Flash range 18-180mm lens focal length -Excellent dust proof and water drop proof function、 Wireless multiple flash control、 Comprehensive and professional flash、  support setting various flash functions through DSLR、 New additions of power socket and PC port  Specification:                                                     Flash Shooting Distance Range       0.6m to 16m           Available Flash Mode       TTL、 Manual flash、 Repeating flash、 S1、S2           Other Available Functions       Test firing、 monitor pre-flashes、 AF-assist illuminator、 and Modeling illuminator MK910 lighting system           Compatible Cameras       for All Nikon F mount cameras           Multiple Flash Operation       Advanced wireless lighting           Camera's Sync Modes       slow-sync、 front-curtain sync、 rear-curtain sync           Rotates Horizon       180  to the left and right with click-stops at 0 、 30 、 60 、 75 、 90 、 120 、 150 、 180             Power Source       Use four AA-type batteries (Alkaline、 Lithium、 OxyrideTX or Ni-MH are usable) (not included)           Mounting Foot Lock Level       rovides secure attachment of MK900 to camera's accessory shoe using locking plate and mount pin           Custom Setting       5 items           Other Function       Thermal Cut-out      Package List:   1 x Mcoplus MCO910 Speedlite   Detail Pictures: