Slow Motion Shutter of Canon R5 1/500th second mechanical shutter - IX Cameras

Thought I would film this with my HS camera after someone asked the question about shutter actuation on a facebook thread.
Easy to spot the exposure phase as the narrow band drop between the two curtains.

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Page 415 Aerial photography has become a vital weapon in modern military intelligence.

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The fastest operating cameras took three photos a second.