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SMI's document retention microfilming conforms to the following specifications:
       
Filming:
   - The Reference Archive media is a 16mm, high-contrast Kodak silver halide polyester base
     microfilm manufactured to ANSI, NEH, and Federal Standards.  16mm Reference Archive media is
     available in 100 and 215 foot rolls. 
 

Output Format:
   - Two main formats are supported by the i9600 Archive writer:  Single and Dual.  Single format creates
     one image per
frame and Dual format creates two images per frame.  Dual format is similar to using
     "extended play" on a video cassette recorder - more minutes of recording time are available than
     when using "standard play" but there is a slight degradation in image quality.  Most filming projects
     will perform well using Single or Dual format.  Additionally, there is a Custom Dual format available
     that yields more images per roll than Dual format however, there is some loss in image quality.

Reduction Ratio:
   - Images on 16mm microfilm will maintain the aspect ratio of the original documents.  The relationship
     in the size of the original document to the size of the image on 16mm microfilm is referred to as the
     reduction ratio.

                   




Document Capacity per Roll:
   - The document capacity varies by roll size and by reduction ratio.  This chart assumes all images are
     letter-size (A4) portrait pages.










Inspection:
   - After each master negative roll has been processed it is inspected to insure that the resolution
     (focus) and density (contrast) specifications are met.

Storage:
   - The preservation master negative can be stored and maintained in our climate controlled facilities at  
     nominal charge or returned to the customer.
                                          
 
 
 
 
             Single Format                              Dual Format                        Custom Dual Format
          
        24:1 Reduction Ratio                  40:1 Reduction Ratio                  50:1 Reduction Ratio
          
                   300 dpi                                        200 dpi                                       150 dpi
          
 
 
 
 
 
  215'                      5,400                                     15,700                                    19,600
  Roll              Single Format                         Dual Format                    Custom Dual Format
          
  Size         24:1 Reduction Ratio             40:1 Reduction Ratio              50:1 Reduction Ratio
          
  100'                      2,300                                       6,800                                      8,500