Recent content by lioiviei14

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    Graduate Lens to lens distance is not 2f in "4f system"

    Dear, I studied 4f system and I've got a question. As far as I know, 4f system is optical filtering system (attached file). In the configuration in the attached file, region between L1~L2 is infinity optics(ray components from P1 is parallel with each other) so that distance between L1~L2...