![]() ![]() It is important to note that aspect ratio does not represent the physical size of an image, or its dimensions in pixels – it refers only to the relationship of its width to its height. Nikon’s CMOS sensors have a 3:2 aspect ratioĪs discussed further down below, some cameras allow choosing different aspect ratios through the camera menu, providing cropping options other than the native one of the image sensor. All modern full-frame and APS-C DSLR cameras have 3:2 aspect ratio sensors, whereas 4:3 is a popular choice among smartphone, Micro Four Thirds and some medium format camera manufacturers. The most common aspect ratios of modern digital camera sensors are 3:2 and 4:3. The aspect ratio is often determined by the form factor of the camera’s film / imaging sensor, which is practically always rectangular. Similarly, an image with a 3:2 aspect ratio would be represented by 3 equal size units for its width vs 2 units for its height, as shown below: For example, a 4:3 aspect ratio would consist of 4 equal size units for its width and 3 equal size units for its height. You can easily visualize any aspect ratio by allocating units to the width and the height of an image. Some even prefer to express aspect ratio as a decimal, followed by a colon and number 1, such as 1.50:1. It can be expressed as a number followed by a colon and followed by another number, such as 3:2, or by a decimal number such as 1.50 (which is simply the long side divided by the short side). In photography, aspect ratio represents the relationship between the width and the height of an image.
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