Scanners are used to convert analogue photography into digital format. High quality and precision photogrammetric scanners are not easily reachable due to their high cost. This paper investigates a new strategy to test a sample low cost desktop scanner to estimate the achievable precision of the product. The digitization quality of the test pattern is investigated at different warm up times and different positions in the scanning area. Notes are given on the performance of the scanner in geometric and radiometric aspects that are essential for photogrammetric applications.

Keywords: Scanner, precision test, digital image.