Drum Scanning

Scanners of this type use photo-multipliers to capture image information rather than CCD technology. They are widely acknowledged to produce very high quality images with exceptional sharpness and contrast range (4.0 D+).

For information on drum scanning for fine art please see our art digital capture services.

The technical specification for our ICG 370i drum scanner is:

  • colour space: custom ICC profiled, Adobe RGB (1998)
  • transparency formats: 35mm up to 10 x 12”
  • reflection copy image area: 316 x 472mm
  • resolution up to 12,000 dpi (472.5 p.p.mm) optical resolution
  • technology: 3 precision photomultipliers
  • image file format: TIFF

Other advantages over flat bed scanners, for example, include the quality of the optical system, accuracy of focus, and edge to edge sharpness. Crucial to this is the ability to hold the original precisely in the plane of focus.

Drum Loading with Transparencies


Drum scan from 6x17cm Transparency - Matt Baker

 

All originals supplied for drum scanning are carefully cleaned before being mounted on the drum. Transparencies are mounted under a clear foil in a very light spirit/oil solution. Unlike the original heavy viscous scanning oil, the fluid is very kind to originals and evaporates when the transparency is demounted. The transparencies are given a final clean after scanning to remove all traces of the mounting solution.

Also see: