Proceedings PaperUnderwater Lens Mtf Testing In Practice
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The first MTF measurements made with the Elcan underwater simulator, as described by Mandler in Applied Optics, Vol. 9, March 1970, are presented. The combination of the underwater simulator and the EROS IV OTF analyser for finite and infinite object distances is described. The measurements were made on four lenses constructed to the identical prescription designed specifically for underwater use. The results are compared to the design predictions.