Secondly, it is best to take a photography training class, or you can find a teacher to teach. I can't believe it. I can also study online. Depending on your camera model, you can go to Zhongguancun online photography forum to find the same users. They introduced their experiences to each other, and some teachers published their own learning experiences. More importantly, good photos taken by netizens have EXIF information, such as what aperture, what focal length, what shutter speed, what sensitivity, what white balance, how to compensate for exposure and so on. Under what conditions and with what data did they succeed? You can also succeed if you learn.
Third, the clarity of pixel performance is more important to determine the size of the photo. Today's tens of millions of pixels have made the computer display screen unable to display in full screen. The image is too large, even 5 million pixels, which will make the computer display insufficient. So don't worry about whether there are enough pixels.