Ask the photographer a little question.

Your settings are just enough for the monitor, and it is enough to enlarge the photos about six inches, but it is absolutely impossible to do more than 12 inch. The imaging quality per unit area should be mainly related to the size and quality of the camera lens and the area of the photosensitive element, and then your photography skills. The size of the photo has no effect on the image quality, but it has a great relationship with the future use. Low pixels (small photos) cannot be turned into high pixels (large photos), but photos taken with larger pixels can be turned into smaller photos as needed. What you said is reduced to 1024*768, of course, the resolution is the same. At present, the photos taken by the studio are generally above 4000*3000, and the size is about 7- 100 m, which can store hundreds of 4G cards, which is not a problem on the computer. It is best to store large pixels for later use.