One problem is to select the important parameters from the mass of information every camera manufacturer provides with his product. This is not particularly difficult when resolution, colour format or camera interface are concerned. However, if a sensitivity comparison is to be made, direct comparison between cameras may not be possible as the way the data is provided is not standardised.
This problem was one of the main reasons for the development of the EMVA standard 1288. The target was to define a series of parameters that had to be specified for a camera or sensor and whose measuring method is clearly defined. This standard is evolving to include further standardised methods of defining specifications and parameters. The following groups are defined in version 3.1 of the standard: