Preservation Imaging Records Management Division

M icrofilm Master NegativeService CopyPrinting Master Film Generations Film TypesNote Master NegativeSilver-gelatin filmShould have a code stamped. Printing MasterSilver-gelatin filmBoth side is shinny, but one side is a bit dull. Service CopyDiazo or vesicular filmVery shiny on both sides. Cant tear end. RMD uses Diazo film.

Service Copy M aster Negative Microfilm Master Negative o The film that is in the camera at the time of filming. o It is duplicated once to make the printing master, and thereafter kept in "archival" storage as a permanent security copy. o It is also called Camera negative, Silver master/negative, Original silver, and First- generation film. Printing Master

Service CopyMicrofilm Silver-gelatin film o They will remain stable for 500 years IF processed/stored according to ANSI. o Only Silver-gelatin films are appropriate for the master and the printing master. Printing Master M aster Negative

Service CopyMicrofilm How can you tell if it is master? Printing Master M aster Negative Ask Christy! Why not Wayne? How about Kim?

Service CopyMicrofilm P rinting Master Master Negative Printing Master o A duplicate made directly from the master negative o It should be kept in archival storage. It is used to make all subsequent copies. o It is also called Duplicate negative, Printing negative, Silver copy/dupe, and Second- generation film.

Service CopyMicrofilm P rinting Master Master Negative Cross Section of Silver-Gelatin Film Source: Micrographic Film Technology, 4 th ed. Reduce scratching & staining Capture the imageScratches easily

Service CopyMicrofilm P rinting Master Master Negative How can you tell if it is Printing master? Look at the film, silly!

Microfilm S ervice Copy Master NegativePrinting Master Service Copy o Positive or negative copies subsequently available for research and lending. o It is also called Use copy, Dupe, andDiazo.

Microfilm S ervice Copy Master NegativePrinting Master Diazo film o It must be polyester based. o Generally appears blue or near-black. o It is vulnerable to fungal attack. o It may suffer significant damage upon exposure to light for more than 3 hours in readers.

Microfilm S ervice Copy Master NegativePrinting Master Vesicular film o It is polyester based. o Sign-reversing: if the master is negative- appearing, the vesicular copy will be positive- appearing. o It doesnt develop redox.

Microfilm S ervice Copy Master NegativePrinting Master How can you tell if it is service copy? Duh~ Read a label on the box

Hands-on: Lets Get Our Hands Dirty!