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Testbed and Methods

I tested the scanner using our traditional methodology for an in-depth examination of all the properties of the device. The configuration of the testbed remains the same, so you can compare the results with those we got in our earlier reviews. In some tests I offer the results of other scanners for comparison’s sake.

The testbed configuration:

  • Intel Pentium 4 3.00GHz CPU
  • 1GB DDR SDRAM
  • Intel Bonanza D875PBZ mainboard
  • ATI RADEON 7000 graphics card
  • IBM Deskstar DTLA-307015 HDD
  • Samsung SyncMaster 757 NF monitor
  • Microsoft Windows XP Professional SP1

I am going to check the following:

  • The real scanning speed when digitizing standard originals
  • Noise coefficients in the digitized image, which will be indicative of the tolerance of the scanner’s electronics to interference
  • Gamut ranges with transparent and reflective originals
  • Color difference between a color target and its scan

Scanning Speed

The time it takes to digitize something is a very important parameter of any scanner and is critically evaluated by the potential buyer. As I mentioned above, the Perfection 3490 and the Perfection 2480 are designed very much alike. Should their speeds be similar as the result? Well, the 3490 has a higher optical resolution, which requires more time to produce a scan. That’s why it is more correct to compare the new model with a same-class scanner, like the Perfection 3170, for example.

So the scanning speed was determined for a standard 10x15cm (4x6”) photograph scanned at different resolutions (300dpi, 600dpi, 1200dpi and 3200dpi). Here are the results:

 
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