It takes a camera with tens of thousands of pixels to take clear photos.

Pixel is not the most important thing, how many times do you want to see it.

"Optical zoom". And what do you mean by "clarity"? This may also be related to light sensitivity. So, don't always stare at how many pixels you buy a camera. Generally, about 400W is enough for your home. Now optical zoom

Usually five times. There is also choosing a good brand. Different brands of cameras have different display effects on the same scene, not to mention the problem of clarity. For example, shooting the same scenery, some like "old photos", some are very vivid. I heard from an old man who specializes in photography that filming is the best. Although digital technology is very good now, it is impossible to shoot the "feeling" of film. It depends mainly on your needs.