Thypoch Eureka Eureka 50mm f/2

A gorgeous hunk of brass that takes surprisingly soft photos. Buy it for the looks, not the pictures.

The Thypoch Eureka 50mm f/2 is a love letter to 1950s lens design, wrapped in brass and topped with a collapsible barrel that's genuinely fun to pop in and out. It feels like an heirloom before you've even shot a frame. But here's the thing: once you do start shooting, the honeymoon fades. Our database shows its optical performance scraping the 16th percentile, which is a polite way of saying it gets stomped by almost every modern 50mm we've tested. If you value tactile joy and vintage vibes over actual image quality, you might still fall for it. For everyone else, this lens is more sculpture than serious optic.

What surprised us most, and not in a good way, is how soft this lens is wide open. The f/2 aperture sits in a mediocre 39th percentile for its class, and the optical performance plunges even further. You'll need to stop down to f/4 before details start to crisp up, and even then it never touches what a decent Voigtlander or a used Leica Summicron can do. Bokeh is just okay, 45th percentile, mild and inoffensive but nowhere near the 'dreamy poetry' the marketing promises. The 12-blade iris does keep sunstars nice and pointy, though, so at least you'll get some pretty flare artifacts.

We scratched our heads at the $799 to $156,370 price spread in our data, so some store names are doing something weird. At the low end, you're still paying a premium for a lens that gets smoked optically by sub-$200 vintage glass. If you find it for a song and just want a pretty brass barrel to fondle on your M body, maybe. As a tool for making photographs, it's a hard pass at any price above $400.

For actual picture taking, a Voigtlander Nokton 50mm f/1.5 is a far smarter buy. It's faster, significantly sharper, and costs about the same as the Eureka's lower price. Even a clean used Leica Summarit 50mm f/2.4 will run circles around the Thypoch optically while keeping that classic manual focus feel. The Eureka competes on charm, not on glass, and in a head-to-head shootout, it finishes last every time.

If you care about optical performance, skip this lens. Grab a Voigtlander Nokton 50mm f/1.5 instead, it's sharper and faster for similar cash. The Eureka is a collector's trinket, not a working photographer's tool.

Unless you're a collector who must have that collapsible brass design and doesn't care about image quality, don't buy this lens. It's a beautiful object that takes mediocre photos. For the same money, you can get real optical performance from Voigtlander or a used Leica lens and actually enjoy the results.