The Cullmann CUlight FR 60N Flash Unit Nikon is an external flash for Nikon system cameras. With the integrated remote control you control the flash up to 100 meters away. The flash automatically zooms in when you zoom in with your lens. The zoom range is 20-200 mm. You rotate the flash head 360 degrees horizontally and 90 degrees vertically to place it in various angles. In the TTL flash mode, the flash fires a short test flash. On the basis of the test flash, the camera determines the power of the flash, which immediately follows. The flash has a reload time of 0.1 to 2.2 seconds, which means you can shoot in quick succession. With the flash exposure correction you determine the power of your flash. You can do this easily with the illuminated LCD screen.