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Focal length

When selecting a lens for a specific machine vision task, first of all, the focal length has to be calculated. This calculation is based on the following three parameters:

The article Lenses for industrial cameras shows how to calculate the focal length based on these three parameters.

Important: There are industrial cameras on the market whose resolution is variable. A typical example are the The Imaging Source One4all cameras. A variation of the resolution leads to a variation of the format and this in turn, affects the calculation of the focal length.