Telecentric and hypercentric optics are very different from our eyes or normal camera lenses. They have "negative" perspective or no perspective, respectively, leading to very unusual images. In this video I show how to use a common fresnel lens in the creation of your own telecentric optical system.

Fresnel lens, 300mm dia. 200mm FL is sold out... https://www.amazon.com/gp/product/B07...

$5 projection lens on eBay: https://www.ebay.com/itm/Delta-108-Pr...

Good practical discussion of telecentric optics: https://www.lockhaven.edu/~dsimanek/s...
https://www.mii.cz/art?id=626&lang=40...

Idea to use macro tubes for telecentric conversion of normal lenses came from here: http://www.4photos.de/camera-diy/Tele...

In-depth info on telecentric lenses: https://schneiderkreuznach.com/applic...

Commercial hypercentric and telecentric lens maker: https://lw4u.com/

Paper on making telecentric lenses with fresnel front elements: https://sci-hub.tw/10.1117/12.455256

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