If the library does not have a microfilm unit but works with a microfilm vendor, it may be important to establish a greater measure of control on the final product by setting up a more advanced preparation and inspection unit. Ideally, this would involve a pre-filming staging area with space for a collation inspection station, where staff would ensure that the item to be filmed is in the correct order and would issue special instructions to the camera operator (missing pages, damage, image problems, special handling concerns, etc). The space would also include a layout and header/target area; this would be equipped with a computer, a high-resolution printer, and connectivity to on-line bibliographic records in order to produce item-specific targets to be sent with the items for filming. A post-filming area should be established and should include apparatus such as a microfilm reader and resolution/density equipment for inspecting returned film. The space for this unit should be from 40 to 60 square meters.