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A 4:3 monitor. Until about 2003, most computer monitors used an aspect ratio of 4:3, and in some cases 5:4. For cathode ray tubes (CRTs) 4:3 was most common even in resolutions where this meant the pixels would not be square (e.g. 320×200 or 1280×1024 on a 4:3 display).
It is used for multiple anamorphic formats and DCI 1024:429 (21. 482517:9), but also for ultrawide computer monitors, including 43:18 (21 1 ⁄ 2:9) for resolutions based on 720 lines and 12:5 (21 3 ⁄ 5:9) for ultrawide variants of resolutions based either on 960 pixels width or 900 lines height.
These may also use other aspect ratios by cropping otherwise black bars at the top and bottom which result from cinema aspect ratios greater than 16∶9, such as 1.85 or 2.35 through 2.40 (dubbed "Cinemascope", "21∶9" etc.), while the standard horizontal resolution, e.g. 1920 pixels, is usually kept.
It is also used in computer monitors, where the term "21:9" can represent aspect ratios of 43:18 (2.3 8:1 or 21.5:9) and 12:5 (2.4:1 or 21.6:9) in addition to 64:27. The wider screen provides advantages in multitasking as well as a more immersive gaming experience, [ 3 ] [ 4 ] and even wider screens with aspect ratios such as 32:9 (allowing for ...
A widely used de facto standard, introduced with XGA-2 and other early "multiscan" graphics cards and monitors, with an unusual aspect ratio of 5:4 (1.25:1) instead of the more common 4:3 (1. 3:1), meaning that even 4:3 pictures and video will appear letterboxed on the narrower 5:4 screens. This is generally the native resolution—with ...
The value found by Powers is exactly the geometric mean of the extreme aspect ratios, 4:3 and 2.40:1, ≈ 1.77 which is coincidentally close to 16:9. Applying the same geometric mean technique to 16:9 and 4:3 yields an aspect ratio of around 1.54:1, sometimes approximated as 14:9 (1.5 5 :1), which is likewise used as a compromise between these ...
The negative is usually 2.66:1 or, in rare cases, 2.55:1 or 2.35:1. The sole purpose of the change to 2.39:1 and, later, to 2.40:1, was to better hide so-called "negative assembly" splices (splices employed in the composited camera negative. This was not a production change, rather it was a recommended projection change.)
The ANSI/CTA-861 industry standard, which according to CTA is now their "Most Popular Standard", [10] has since been updated several times, most notably with the 861-B revision (published in May 2002, which added version 3 of the extension, adding Short Video Descriptors and advanced audio capability/configuration information), 861-D (published ...