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p.1 #2 · Retro Effect for PHOTO BOOTH | |
You can mechanically vignette the picture by blocking some light from the edges of the lens. Try cutting a circular hole in cardboard or black paper, slightly smaller than the front element of the lens, and attaching it in front of the lens. You can vary the vignetting effect by changing the size and distance of the hole from the front of the lens. If you want a softer edge than you can get with a circular hole, make a hole with a many-pointed star shape (i.e. take a circular hole and cut lots of narrow, closely spaced triangles into the rim) for a more gradual transition.
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