Slow-Motion Video of Lens Aperture Blades in Action

If you’re not subscribed to Preston Scott’s Camera Technica blog, you should be, and here’s why: This is a video shot by Scott showing the aperture blades inside an SLR lens, opening and closing in slow motion. The lens is a Canon 18-55 zoom, which has been “carefully excavated” to reveal the aperture mechanism. The [...]

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