Are you considering a Graphtec Scanner vs. a Contex HD Scanner?
     Here is how Contex Scanners score in comparison.
Contex HD vs Graphtec
Graphtec CS600Pro
CIS Technology
600dpi optical resolution
Max resolution: 9600dpi
24-bit color
no color space reference
Software image processing
3.0ips color speed @400dpi (draft)
9.0ips mono speed @200dpi
Speed test: A0-size document
 
  • color, 200dpi: 18 sec
  • color, 400dpi: 2m 39sec
    		•
    Contex HD4200
    CCD Technology
    600dpi optical resolution
    Max resolution: 9600dpi
    48-bit color
    sRGB color space
    On-board image processing
    3.0ips color speed @400dpi (turbo)
    12.0ips mono speed @200dpi
    Speed test: A0-size document
     
  • color, 200dpi: 15 sec
  • mono, 400dpi: 49sec
    		•

    HD Exclusive
    Up to 600dpi High-quality 4-channel CCD
    On-Board Image processing
    USB2 with xDTR
    WIDEsystemNET scan-to-net features
    12ips scanning speeds – fastest available
    Thick document scanning on all models