Aspect Ratio

Tip: Compose images with the knowledge that the aspect ratio is 4:3, and not 3:2.

On the commonly used 35mm film format, the size of the negative is 36x24mm, which translates to an aspect ratio of 3:2. For most digital cameras today, the aspect ratio is usually 4:3, as can be seen from an image size of 800x600 pixels, or 1600x1200pixels.

This means that the image from a conventional 35mm camera is longer than that from a digital camera. In such a case, digital photographers should bear in mind the difference when composing an image.

3:2	4:3