- A typical digital camera’s aspect ratio is 1.333… (4:3)
- International paper sizes’ ratio (ISO 216) is 1.414 … (√2:1)
- A 35 mm picture’s aspect ratio, as well as iPhone displays’ ratio, is 1.5 (3:2)
- Golden ratio φ is 1.6180339887…
- Super 16 mm is 1.666 (5:3)
- Widescreen TV, as well as APS-H, is 1.777… (16:9)
Aspect ratio
http://en.wikipedia.org/wiki/Aspect_ratio
Aspect ratio (image)
http://en.wikipedia.org/wiki/Aspect_ratio_(image)
Golden ratio
http://en.wikipedia.org/wiki/Golden_ratio