What Happened to Sigma's Foveon Sensor? The Most Ambitious Camera Tech We Still Haven't Seen

Somewhere in Sigma's factory complex in Aizu, Japan, the company's sole manufacturing facility, where every Sigma lens and camera is built, there is an engineering team that has been working on a single image sensor for nearly a decade. They have built prototypes, found flaws, gone back to the drawing board, lost their manufacturing partner, and started over.

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