What is macro photography?

Strict definition of macro photography: macro photography refers to the ability of a camera to shoot an image with the same size (1: 1) or slightly smaller than the actual object through the lens. For example, if you want to shoot a flower with a diameter of 2 1.6mm, it can fill half the area of 35mm film (diagonal length is 43.3mm). The magnification of the flowers in the photo is 43.3: 2 1.6, which is 2: 1(2 times). The magnification of macro photography is usually between 1 and 50 times, and strictly speaking it should be between 1 and 10 times.

It is understandable that digital cameras have strong macro capability-it is precisely because the size of the sensor is much smaller than that of 35mm film. For example, a small digital camera (assuming a focal length multiple of 4 times) is used to shoot the above-mentioned flowers with a diameter of 2 1.6mm, and its magnification is 1: 2, while the required magnification of a film camera is 2: 1. This shows that small digital cameras are easier to obtain macro shooting effects than film cameras.

Macro mode can be found on digital cameras, which is convenient for users to focus and shoot objects close to the lens.

Macro ability is often measured by the degree to which the camera (non-interchangeable lens camera) can clearly fill the light picture in macro mode. For example, the macro mode of one camera can clearly display the objects with a length of 20mm in the picture, while the other camera can only display the objects with a length of 40mm, so we say that the macro capability of the former is stronger than that of the latter.