What is the clearest shooting distance?

It is said that there is a saying among people who play photography that "it is not good enough because you are not close enough". Are you talking about shooting a person or a main object?

If by clear, you mean that you can make the subject as large as possible without mosaic, and show the details of the subject as much as possible, regardless of whether other objects are blurred in depth of field, then:

1 You can't use the digital zoom function, which is actually reducing pixels.

2 When filling the photo frame with the subject as much as possible, focus accurately, and adopt appropriate aperture and iso value (not too high, which is easy to make noise) to ensure that the shutter time can ignore the jitter of your body (of course, if you have a tripod, you don't have to worry about a little longer shutter time).

No matter what focal length (28 or 200) or aperture, as long as the above two points are achieved, the requirement of "clear subject" can be basically met. The premise is that your lens can image in this focal segment. But telephoto (standing farther away and closer) is more susceptible to camera shake.

The angle will not directly affect the "sharpness", and the camera will only accurately reflect what it "sees", but the glare caused by the angle, the large-area reflection or relative darkness of the subject, the dazzling flash of the subject, etc. It may cause the loss of the details of the subject, because both the electronic sensitive film and the film have certain tolerances, and it is impossible to display the gray scale in a stepless manner as you can see with the naked eye. Therefore, the subject should not be too bright or too dark as far as possible, and try to take the subject as a metering object.

If you do the above, you can only improve the quality of the lens without replacing the photosensitive element.

This is just to meet the requirement of "clear subject" in digital camera shooting, regardless of artistic effect, which is your own business.