What does digital APO on a digital camera mean?

The above "satisfactory answer" is not very accurate. APO is used in lenses and telescope optical equipment. It does mean apochromatic, that is, using multiple layers of lenses to superimpose light of different colors and finally converge on the same focus... But it depends on what your question says about "digital APO" "It should be another situation. It uses software to restore the image with chromatic aberration to a situation without chromatic aberration (of course this has conditions and scope of application), and the one mentioned before is also called optical APO - similar Due to the difference between digital zoom and optical watch focus.