Key features : TTL FLASH
Di622 is compatible with Canon's E-TTL, E-TTLII system, and Nikon's i-TTL system.
Those new digital TTL flash systems control the flash light with greater precision and stability.

POWER ZOOM & TURNING FLASH HEAD
The light distribution angle is automatically adjusted for the lens focal length. A high quality stepping motor sharply traces the lens movement with the same speed as that of the camera manufacturer's original flash model.

The flash beam covers the frame from 14mm (with a wide angle diffuser built-in) to 70mm of the digital lens. For a longer lens, the flash head reflector position stays at 70mm.
It turns 90 degrees upward and 270 degrees horizontally for bounce lighting.The flash head also stores a small reflection panel for fill-in shots. The focal length for the traditional SLR camera is to be multiplied b a factor of 1.5.

OFF CAMERA FLASH
The Di622 has a special photo sensor built-in.
Place the Di622 off camera and the flash will synchronize with the master flash placed on your camera. This wireless remote flash system is called slave flash technology and is often used for a creative lighting efficiency.
Use the camera's built in flash, the camera manufacture's original flash or the Di622 as the master flash. Place one or more Di622 flash units away from the camera.
The sensor circuitry of Di622 is compatible only with the latest pre-flash TTL system offered by Canon or Nikon.The Di622 is not compatible with traditional flash systems or studio flash systems.

Usable camera : CANON digital camera, NIKON digital camera
Guide Number : 44m, 145ft. (ISO 100), 62m, 205ft. (ISO 200)
Variable power : 6 levels : Full - 1/2 - 1/4 - 1/8 - 1/16 - 1/32 powers
Flash exposure control : E-TTL and E-TTL II for Canon cameras / i-TTL for Nikon cameras
Power source : 4X LR6 or equivalent Mi-MH, lithium, oxyride batteries
Recycling time : 0.2 -4.7 sec., with fresh alkaline batteries / 0.2 -4 sec., with Ni-MH batteries
Energy saving system : 5 minutes to stand-by mode, 30 minutes to shut down
Number of flashes : 200-1500 flashes by fresh alkaline batteries
Illumination angle : Digital lens : 16mm (14mm with wide angle diffuser)
by zooming reflector :
to - 18 - 24 - 35 - 47 - 57 - 70mm
Traditional lens : 28mm (20mm with wide angle diffuser)
to - 28 - 35 - 50 - 70 - 85 - 105mm
Turning head : 90 upward, 90 to left, 180 to right
Slave mode :
Slave sync : with respect to the digital pre-flash system
Power level : same as the variable power above
AF Assist light : Infrared LED for distance of 0.7 to 6 meter.
Color temperature : 5,600K (same as daylight)
Flash duration : 1/800sec. to 1/20,000sec.
Camera contact : Hotshoe only (not compatible with the traditional hotshoe system)
Accessories included : Shoe stand, pouch
Dimensions : 77(W) x 130(D) x103(H) mm / 30(W) x 51(D) x 40(H) inches
Weight : 315g (without battery) / 11oz