The aspect ratio of an image is the ratio of its width to its height. The larger the ratio, the ‘wider’ the image; the smaller the ratio, the ‘squarer’ the image. Digital camera sensors have their own ‘native’ aspect ratio, and this is generally tied in to the sensor size. The small 1/2.3-inch sensors or […]
1:1 ratio (square)
A 1:1 aspect ratio means the width of the image is the same as its height – in other words, it's square. The square format was very popular in 120 medium format film photography, and it's popular today on Instagram.