Answer :
The standard aspect ratio for sound films until 1953 was 1.37:1.
What is aspect ratio?
A colon separates two integers, such as 16:9, which stands for sixteen-to-nine, to indicate the aspect ratio of a picture, which is the ratio of its width to its height. The image has an aspect ratio of x:y and is x units wide and y units height. The most common aspect ratios used in cinematography are 1.85:1 and 2.39:1, whereas television photography uses 4:3 and 16:9 and still photography uses 3:2.
In movie theatres, the 1.85:1 and 2.39:1 aspect ratios are frequently utilized. The two most widely used videographic aspect ratios are 16:9 (1.7:1), which is used for high-definition television, and 4:3 (1.3:1), which was the standard video format of the 20th century. Other aspect ratios for film and video do exist, but they are rarely used.
The most prevalent aspect ratios used while photographing with still cameras are 4:3, 3:2, and, more recently, 16:9. In photography, notably in medium format and large format, additional aspect ratios, such as 5:3, 5:4, and 1:1 (square format), are also utilized.
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rear window was shot with an aspect ratio of 1.66:1, which was the wide screen format established by paramount in 1953. what was the standard aspect ratio used in sound films until 1953?
