The Incomparable BetterLight Scanning Back.
This is a far superior method used to digitally capture fine art work for museum grade reproduction (Giclee).
Many people do not realize that even the finest digital cameras capture only two of the three primary colors and interpolate (Bayer) the third color.
Instead, this uses one line of precision Red, Green, and Blue sensors moving along the focal plane of the precision large format camera to gather a true pixel file of approximately 1/2 Gigabyte.
What a difference this makes!