Optical Hypercentric Effect
Автор: MJKZZ
Загружено: 2021-10-28
Просмотров: 1684
Описание:
This video demonstrate an optical effect called hypercentric effect. Normally, as we all know, the closer the camera to the subject, the larger the image would be and vice versa, the further away the smaller the image. However, with optical system configured in hypercentric setup, it is the opposite -- the further away the camera, the larger the image and the closer to the subject, the smaller the image of the subject. For more details, please google the term hypercentric
There are many ways to setup a hypercentric system. In this particular setup, an iris is placed between two lenses (the tube lens and the objective). The simplest way to put it is that this iris selects what light rays to reach camera sensor such that hypercentric effect happens. This is also why when the iris is wide open, no hypercentric effect and when it is stopped down, hypercentric effect occurs.
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