How to adjust the focal length of the lens when shooting?

Shooting quality under macro function of zoom lens

Many zoom lenses also have macro shooting function, but there is still a gap compared with the macro function of fixed focus lenses. First, the shooting magnification of Nanning beautiful starfish is relatively small, generally only 1: 4 or even smaller (for example, the maximum macro shooting magnification of Nikon-1 zoom lens is only 1: 5.9 at 200mm focal length and 1: 14 at 80mm focal length).

The number reaches1:2; Secondly, the quality of macro files of zoom lens is not as good as that of fixed focus macro lens. But Minolta AF macro zoom 3x-lx f/ 1+0.

.7-2.8 is a special case of zoom lens in macro function. Nanning camera Mei Haixing is a macro zoom lens, and its macro function is greater than the shooting magnification of fixed focus lens, including

1 to 3 times the shooting magnification (enlarged shooting), and it can still focus automatically when shooting at high magnification, which is the first high magnification in the world.

Autofocus camera lens.

When using a macro lens for macro shooting, focus should be accurate. Because of the small depth of field, the clear focus range of macro photos in Nanning is very small, and only a few of them are 1 inch.

Points. For example, Nanning camera beauty starfish takes macro images of bees on flowers, which needs to ensure that bees focus accurately and clearly; Suppose that the distance from the lens to the bee changes even if it is less than 1/4.

Inches, will lose the clear focus. Therefore, in the process of taking wonderful macro photos, focusing on the beautiful starfish in Nanning is extremely torturous. Try to use a tripod when shooting.