Beginners learn photography. I like your suggestion.

What is said upstairs is generally good. Explain it in detail here.

Regarding focusing, we should first establish the concepts of "focal plane" and depth of field, that is, the clear shooting range of the subject is roughly a sector with the camera as the point, the horizontal depth of field (related to the aperture size) is wide, the focusing distance is 1/3, and the objects in it are basically clear. As long as the aperture and focusing mode are set properly, the subject can be ensured to focus correctly. In your case, the object basically moves in place, so it can be focused on a point. The unclear problem is not focusing but shutter speed. -When the object keeps moving relative to the original focus distance, use tracking and focusing in AF mode, which is not applicable here.

Next is the shutter, which involves exposure combination. First of all, we should understand that the shutter, aperture and sensitivity are interchangeable, and then decide the combination of the three according to the shooting needs; After that, we need to understand the concept of "safe shutter" (reciprocal of shooting focal length) and the relatively safe shutter in practical application, and decide what shutter speed to adopt. In your place, the safety shutter for shooting the focal segment in the middle is about 1/60, and it is estimated to be multiplied by 4 to 8 times if you move quickly. That is to say, generally speaking, shooting can be guaranteed to be clear between 1/200 and 1/500-of course, it should be adjusted according to the actual situation, such as the motion range when the subject occupies a large screen.

From this point of view, in the shooting mode you asked, the automatic mode is obviously not desirable, because the machine can't choose the exposure combination completely according to your intention; K gear, that is, shutter priority, is more feasible and the effect is more certain, while A gear (aperture priority) and M manual gear may be better if they are experienced. Because as long as a relatively safe shutter is guaranteed, the clarity can be guaranteed, even if it is faster, it is not a big problem; And if you have the conditions to choose a certain aperture (generally use a large aperture, but sometimes you need a small aperture effect when the light conditions permit), you can ensure that the effect of the film is within your expectations.

A lot. . I don't know if you are dizzy. Hehe, anyway, I was dizzy at first. If you want to shoot well, you must learn the basics, do a lot of shooting exercises, and experience will naturally accumulate. * * * Whatever you want.