Continuing down this path we're on, looking into the inner workings of our photographic equipment, here is yet another fabulous video from the folks at Camera Technica showing you what the Canon 18-55mm aperture looks like when it opens and closes in slow motion. Well, somewhat slow motion. The aperture actually opens and closes so quickly that even in this high-speed video it's still a very brief movement.

Check out Camera Technica for more about photographic technology.