Photographer Mathieu Stern is known for his fun projects like turning a Parisian apartment into a giant camera and shooting travel photos with a full-spectrum converted Sony camera, often shoots with vintage lenses. Stern significantly improved one by putting the world's blackest material inside it.
Photographer, YouTuber, and weird lens connoisseur Mathieu Stern recently made one of his coolest finds yet. It's the Carl Zeiss 105mm f/1.9 Kipronar T, a cinema projector lens he describes as "one of the most amazing swirly bokeh lenses I ever tested"... and yet it only cost him $25.
YouTuber Mathieu Stern is a weird lens expert, but even he didn't realize the gem he'd uncovered when someone sold him an old cinema projector lens for 2 Euros at a flea market. It turns out this rare 75mm f/1.9 lens produces some of the most intense swirly bokeh Stern has ever seen.
While browsing a flea market, photographer Mathieu Stern came across an old slide projector and managed to buy the Rollei 90mm f/2.4 MC lens mounted to it for just €5 (~$5.70). With a little bit of ingenuity and effort, Stern converted it into a camera lens and found that it's a terrific lens for shooting portraits.
The Carl Zeiss Kipronar 120mm f/1.9 is a vintage cinema projector lens that was designed to beam images rather than capture photos, but you can mount it to modern cameras using adapters. Photographer Mathieu Stern created a homemade adapter after buying the lens for $70 and has been delighted by the "insane swirly bokeh" that the lens produces.
If you think a 50mm f/1.2 lens that captures sharp portraits with gorgeous bokeh is hundreds or even thousands of dollars away, think again. If you're willing to get creative, you can have one for just 20 bucks.