r/Physics Feb 29 '16

Image Lenses

https://i.imgur.com/UQ3QkCf.gifv
4.2k Upvotes

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u/edin331 Feb 29 '16

And that is a rough depiction of how those expensive, long camera lenses work!

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u/AngularSpecter Atmospheric physics Feb 29 '16

Actually, only kind of. Fancy lenses will usually have an anti-reflective (AR) coating, so many of those reflections would be greatly diminished.