Info JJC FDA-S1 Film Digitizing Adapter And LED Light Set The JJC FDA-S1 is specially designed for negative copying and converts film to digital files. The adapters allow you to attach the set to different lenses and the angle of view and tilt can be adjusted by using the view angle adjustment ring on the barrel. Dedicated film holders for both film strips and mounted slides2 are included, as well, to help hold the film taut and to benefit handling. Beside that, the set is particularly well-suited for the Nikon D850 camera due to its dedicated Negative Digitizer mode and ability to automatically reverse colors in-camera to expedite the digitizing process. Additionally, you can use the set together with the included LED Light3 to get high quality light source and improve image sharpness. The supplied LED light features 42 built-in ultra-bright LEDs and those LEDs are covered with a screen to produce a soft and even light. The color difference can be effectively reduced for the LED's 95+ color rendering index and 6500K color temperature. Besides that, the connection cable of the LED is about 1.5m / 4.9' and it requires a 5V-2A USB power adapter (not included) for power supply. The controller on the cable allows you to turn on or turn off the LED and enables you to adjust the brightness of this light (the brightness has 10 levels available). You can insert the slide mount holder or strip film holder into the holder insertion slot on the LED to provide high quality light source when carrying on a negative copying. Additionally, the support on its back is designed for using on a flat surface; the 1/4"-20 female thread on the bottom is designed for mounting on a tripod or stand.