2. The lens is facing the center of the picture, and the camera is perpendicular to the picture as far as possible.
3. It is recommended to use a strong flash. If possible, add auxiliary light sources in the left and right directions, and the light sources should not be too close to the picture to reduce color difference.
In fact, the scanning effect will be better, and the scanner is also very cheap at present. More than 300 yuan can buy a good one, much cheaper than a digital camera. Just scan the larger pictures several times and learn to put them together in the computer. If you know PS software, there is no problem at all.