Grit on Instagram: "This effect is called Dolly Zoom, where the background looks like it’s moving while the camera moves. It’s one of the most famous cinematic camera effects used in movies to create a feeling of shock, realization, or tension. The dolly zoom is achieved when the camera physically moves closer or farther from the subject while zooming in the opposite direction, making the background appear to stretch, compress, or move unnaturally behind the subject. Filmmakers use the Dolly Zoo

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