Film Detecting Mode
IF the Sensor switch is on, the brightness of LED lamp is controlled automatically due to operate the detecting sensor, When the film is attached or detached on the viewer, the brightness of LED become maximum or minimum IF the Sensor switch is adjusted to Foot switch mode , the lamp will be turn off automatically, so user have to press
Foot Switch Mode
if user press the Foot switch 2 time consecutively, the brighnessof LED lamp is changed according to film size. The Foot switch in order to turn on the lamp. In this mode , user can control the VR with pressing the foot switch. (The changeable LED lamp size : 3 1/3 Ⅹ 12” , 4 1/2 Ⅹ 12”)
Normal Manual Mode
IF the Sensor switch is off, user can control the brightness of LED lamp not using the Foot switch. The brightness of LED lamp is brighter and if VR is turned to the counterclockwise, the brightness of LED lamp is darker.