If this infernal machine were bigger, it could be used to torture the inhabitants of hell. Forever
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 video is shot at 120 frames per second.
It's a wonder that it even works, let alone that it works time after time without those blades having a nasty crash. What I love most about the video, though, is the sound. The relentless mechanical grind, repeating over and over, is like something from Fritz Lang's Metropolis, both menacing and coldly indifferent at the same time. Hypnotic.
High Speed Video of Aperture Blades Closing [Camera Technica]
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