How to get a 50mm 1.2 Lens for 20$

Is it possible to get a 50mm 1.2 Lens for 20$ ? The expert on vintage lens Mathieu Stern has the solution. Simply use an old projector lens for a fully manual focusing lens, very hard to use for beginner but take some absolutely gorgeous photos.


The results are stunning with a crazy swirly bokeh:





Even better, we can emulate the scenes from Stanley Kubrick's masterpiece "Barry Lyndon" using candlelight and this cheap lens.