This kit includes a Di866 Mark II Flash, Calumet Speedlight Powerblock 900, and dedicated cable to connect the Nissin flash to the Powerblock.

The Di866 Mark II Professional for Nikon is Nissin's flagship model featuring innovative features and professional performance. The flash features a main light with a powerful guide number of 60 as well as a sub flash with a guide number of 12 (ISO100, 105mm) that can be used as a fill light when bouncing the main flash. The Di866 Mark II's user friendly color display with auto-rotate let's you intuitively and easily access all of the flash's functions. In addition, the flash includes a usb port for firmware updates, a PC sync socket, and an external power port.

The Speedlight Powerblock 900 is the perfect power source for wedding and location photographers who rely on their speedlights for high volume flashes from a single charge, fast recycling, and consistent flash output. The extremely portable battery pack can conveniently clip onto your belt or be carried with the included shoulder strap. The battery pack features a high-quality Ni-MH battery that will provide up to 500 full-power flashes from a single charge and will recycle most flashes in just 1 second. The Speedlight Powerblock 900 fully charges in 2 hours.

Guide Number (ISO100): 60m, 198ft. (105mm), 40m, 132ft. (35mm)

Focal length Coverage: 24~105mm (18mm with wide angle diffuser)

Power Source: 4 x AA battery

Recycle Time: 0.1-5.5 sec. (Alkaline, NiMH)

Number of Flashes: 150-1500 times

Flash Duration: Manual mode 1/300 (Full Power) , TTL mode 1/300-1/30000 sec.

Energy Saving: Auto power off Off, 10, 15, 30, 45, 60 mins
Stand-by mode 30 sec.
Display off Display screen switch off

Color Temperature: 5600K

Flash Power Control System: Full Auto i-TTL/i-TTL-BL (for Nikon) Ev compensation adjustment on camera
i-TTL/i-TTL-BL (for Nikon) [Advanced] Ev compensation, Manual zoom, Sub-flash allowed
Auto Aperture Flash F1.4-F16 (ISO100), 1/3 Ev steps, [Advanced] Manual zoom, Sub-flash allowed
Manual Power Full-1/128, 1/3Ev steps, [Advanced] Manual zoom, Sub-flash allowed
Multi-flash Frequency-90Hz, 1-90 times, Power 1/8-1/128

Wireless Remote flash Slave:
Slave Digital Slave / Film Slave, [Advanced] Sub-Flash Allowed
Wireless TTL Master / Remote, 4 Channels, 3 Groups (A, B, C)[RMT, RMT2 for Sony], Modes: Off/ TTL/ Manual, TTL Flash Ratio Adjustable

Ev Compensation on flash: -0.3 - +3.0, 1/3Ev steps

My TTL setting: -0.3 - +3.0, 1/3Ev steps

Bounce Function: Upward 90 degree, Left 90 degree, Right 180 degree

Sub-flash: Manual Full - 1/128, 1Ev steps

FE/FV Lock: [FEL] OR [AF-L] for Nikon

Rear curtain sync.: Yes

High speed sync.: Yes

Red eye reduction mode for Nikon: Yes

Slow sync. mode for Nikon: Yes

Red eye reduction mode + Slow sync. mode for Nikon: Yes

AF assist light distance: 0.7-10m

Operation Control mode: Color Display (Auto Rotation)

Firmware Update Terminal: USB

X terminal: Yes

External power pack socket: Nissin Power Pack PS-300, Nikon original pack (except Nikon SD-9)

Dimension: 74(W) x 139(H) x 113(D) mm / 2.91(W) x 5.47(H) x 4.45(D) inches

Weight: 380gr. w/o battery