Physics Help Forum Question about zooming out with lens

 Light and Optics Light and Optics Physics Help Forum

 Aug 28th 2019, 06:07 PM #1 Junior Member   Join Date: Aug 2019 Posts: 1 Question about zooming out with lens Hey guys, I need some help. I am working on a project and I am wondering if it is possible to make an object to look 100 times far away than it is actually using lens (or more than one lens). The lens (or lenses) should be near the object, not near the eye. For example if we have lens in front of a strawberry that is 20cm from the eye to be visible as it is 2000cm away. I did some research and understood that i might need concave lens but I am not sure how to calculate the specification of the lens that will zoom out as much as i need and if it is possible at all to zoom out that much. I will appreciate any help! Thanks!
 Aug 31st 2019, 08:05 AM #2 Junior Member   Join Date: Aug 2019 Posts: 25 Hi. I don' t have directly an answer. But I know, when using a binocular in reverse direction, it gives this "it looks far away effect". Kind regards. Marcel.
 Sep 2nd 2019, 04:32 AM #3 Senior Member     Join Date: Jun 2016 Location: England Posts: 998 The geometry of the problem means that the optical changes are easier to do close to the eye. A very close analogy would be the length of a lever and the position of its pivot point. So what you suggest might be theoretically possible, but there would be some fairly substantial practical issues. __________________ ~\o/~

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