Datasheets can be misleading. So how do you know what you are really buying? To help optical designers and engineers view optical datasheets more critically and ask the right questions of lens providers, this article discusses key datasheet parameters.
Modulation transfer function (MTF) is the best proxy for lens performance, but the math behind it and the graphs that depict it often obstruct understanding. This paper demystifies MTF, arming vision system decisionmakers with the knowledge they need to choose the right lens every time.