Video: DIY Perks creates a massive ’35mm F0.4′ equivalent lens for otherworldly bokeh

Matthew Perks, creator of the DIY Perks YouTube channel has shared how he built a ‘35mm F0. 4’ equivalent lens built around an episcope lens taken from some of the earliest projection technology. .

As Perks explains in the video’s introduction, the episcope lens was the optical element used in epidioscopes to project well-lit objects onto a wall or screen in a dark room.

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