To combat that trend, special theaters offered this extremely wide picture, created by projecting three standard 35mm images side-by-side onto a giant curved screen. Home television viewing was depressing movie-theater ticket sales. To add sound to movies, engineers recorded an audio track on a thin strip alongside the video frames, resulting in a slight shift of the picture’s shape. Examples: “A Trip to the Moon” (1902), “The Sting” (1973), and all television until the rise of high definition. William Dickson, working in Thomas Edison’s lab, used multiple frames of standard Eastman Kodak 35mm film to create a video image.
The smaller the ratio, the more square the picture the larger the ratio, the wider the image.)
(An aspect ratio is expressed as either a horizontal-by-vertical proportion, like 4:3, or as its resulting ratio, like 1.33. This isn’t the first time aspect ratios (screen proportions) have changed-or have given society headaches.
LETTERBOX ASPECT RATIO TV
It’s kind of a mess: Vertical videos look ridiculous on TV sets and computer screens, but traditional horizontal videos play tiny and goofily on smartphones held upright. This month, my Scientific American column tackles the new era of vertical video-videos shot and viewed as tall, thin rectangles, suitable for smartphone screens without having to turn them.
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