In order to realize the long-term safe preservation of important electronic materials, digital filing machines are widely used in books, archives and military systems, and make important electronic materials into microfilms for heterogeneous backup. It's best to buy a digital archiving machine that can support all standard formats, high resolution black and white/grayscale/color microfilm, high optical resolution and large film capacity. At present, it is recommended to use OP800 digital archiving machine, with the highest optical resolution of 65438+32 million pixels and the film capacity of 600 mm. ..