How Does a Film Scanner Work?
The Scanner Determines Film Colors The scanner identifies the color of the film. Some film scanners have databases of films so that all you need to do is select what type of film you are using. The scanner will select the base color and proper settings to get the best scan. If not, the scanner looks for the lightest part of the frame and makes it the whitest white on the resulting scan. The Negatives are Illuminated The scanner uses an LED, or Cold Cathode Lamp to light up the negatives. Two or three mirrors then reflect the image through different filters and lenses until it reaches the CCD (Charged Coupled Device). Some scanners, such as Canon’s Canoscan, use infrared light so the connecting software can easily identify and remove dust before the negative is scanned onto the computer. The Information is Collected Finally, the CCD collects the information and converts it into electronic signals on the computer. The resulting scan is either a simple image ready to be edited, or it can
