Can Nikon d90 lens capture macro and depth of field? . . How to adjust,,,

Well, your expression is quite confusing.

The first is macro. The definition of macro in photography is not how close the lens is to the target, but how many times the size difference between the actual object and the object photographed on the negative. This concept is called magnification. Professional macro lenses can achieve the magnification of 1: 1. In other words, if you shoot a coin with this lens, the coin can fill the whole picture.

Remember that the magnification of the camera lens is 1:0.2, which means that the photos taken are only 1/5 of the professional macro lens, which is much worse than the professional macro lens, but it is still acceptable for general use.

So we say macro macro comes from the macro on the lens. In fact, it really means micro, not macro Of course, in a sense, when the distance is close, it is natural to shoot large. The focus distance of this lens is really close, so everyone will make a mistake and understand it according to "macro".

Then the depth of field. See what you mean, you should want to take a photo with a blurred background and a shallow depth of field. Admittedly, this is the main motivation for many beginners to fall in love with SLR. To achieve this goal, four conditions are needed: large aperture, long focal length, camera close to the target, and target far from the background.

The aperture of the D90 ferrule is not large, so don't count on it. Then you should try to shoot with a telephoto end of 105mm; Open the aperture as large as possible; Then don't be too far away from the target, such as taking portraits, not taking pictures of the whole body but only the bust or head; And the farther away from the background, the better.

This can still achieve a good blurring effect.