Which of the following is NOT a typical aspect ratio for digital video?

Which of the following is NOT a typical aspect ratio for digital video?

• A. 2:1
• B. 16:9
• C. 4:3
• D. 21:9

Answer: (A)

Digital video commonly uses 16:9, 4:3, and 21:9 as standard formats. 16:9 is the dominant ratio for HDTV, streaming, and modern cameras; it’s what most displays and delivery platforms expect. 4:3 comes from older standard-definition television and is still seen in some archival or retro content. 21:9 is an ultrawide “cinematic” look that many productions shoot for or deliver in to achieve a widescreen effect and it’s supported by many editors and monitors today. The ratio that isn’t a typical standard for general digital video is 2:1; it’s not a mainstream delivery or presentation ratio, and while it may appear in some niche workflows, it’s not part of the common set used for most digital video projects.

Digital video commonly uses 16:9, 4:3, and 21:9 as standard formats. 16:9 is the dominant ratio for HDTV, streaming, and modern cameras; it’s what most displays and delivery platforms expect. 4:3 comes from older standard-definition television and is still seen in some archival or retro content. 21:9 is an ultrawide “cinematic” look that many productions shoot for or deliver in to achieve a widescreen effect and it’s supported by many editors and monitors today. The ratio that isn’t a typical standard for general digital video is 2:1; it’s not a mainstream delivery or presentation ratio, and while it may appear in some niche workflows, it’s not part of the common set used for most digital video projects.