How to shoot macro with SLR?

Select the corresponding macro lens as needed.

Macro lenses with different focal lengths have different application characteristics, specifically: under the same image-field ratio, the shorter the focal length of the lens, the closer the shooting distance; At the same distance, the longer the focal length, the larger the picture; Short focal length lens can emphasize the perspective of the picture, and long focal length lens can compress the picture better, blur the background and highlight the subject. Generally speaking, if you want to leave a large space between the lens and the main body for lighting and illumination, you should use a macro lens with a long focal length. When shooting insects or other small animals, you should also use a long-focus macro lens to shoot at a certain distance from insects or small animals, so as not to scare them and miss the shooting opportunity.

Appropriate compensation for risks

When using macro lens to shoot close-ups, appropriate exposure compensation should be made according to the shooting magnification. Generally, the corresponding exposure compensation data will be recommended in the instruction manual of macro lens. See Table 1, Table 2 and Table 3 for the recommended exposure compensation of several EF series macro lenses of Canon. At present, most single-lens reflex cameras have automatic exposure function, so there is no need for exposure compensation when shooting automatic exposure files with camera with?L function.

Table 1E50 mm f/2.5 Close-up exposure compensation table 2E50 mm f/2.5 Close-up exposure compensation of small macro lens plus original size adapter table 3E 100 mm f/2.8 Close-up exposure compensation of small macro lens.

Pay attention to the shooting quality under macro function.

Many zoom lenses also have macro shooting function (strictly speaking, it should be called "macro function" or high-power shooting function, because many zoom lenses marked with macro are not very close when shooting at high power), but there is still a gap compared with the macro function of fixed-focus lenses. First, the shooting magnification is small, generally only 1: 4 or even smaller (for example, the maximum macro shooting magnification of a Nikon lens is only 1: 5.9 at 200mm focal length and 1: 14 at 80mm focal length), and only a few of them reach1:. Secondly, the quality of the image shot by the zoom lens macro file is not as good as that of the fixed focus macro lens. However, Minolta AF macro zoom 3x-LX F/ 1.7-2.8 is a special case of zoom lens in macro function. This is a macro zoom lens, the macro function is greater than the fixed focus lens, the shooting magnification is 1 to 3 times (enlarged shooting), and it can still focus automatically when shooting at high magnification, which is the first in the world.

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Precise focusing

Macro lens provides convenience for shooting small objects at close range, but when using macro lens for macro shooting, the depth of field is very small, so focus should be very careful, and the camera should be mounted on a tripod or a remake stand as much as possible.