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Here's an example of a lens with a triangle shaped aperture: https://vintagelensesforvideo.tumblr.com/post/126045282053/the-very-unusual-triangular-aperture-on-

by vlti 5y ago

Here's an example of a lens with a triangle shaped aperture: https://vintagelensesforvideo.tumblr.com/post/126045282053/the-very-unusual-triangular-aperture-on-my-carl https://vintagelensesforvideo.tumblr.com/post/126045282053/t...