I just noticed to some annoyance that when you take photos using portrait mode, the image is reduced to 12MP and files are about 1.6MB. However if you take the same photo in photo mode and then apply auto portrait mode after the fact you get the full 24MP and files are about 2.6MB.

I have been using portrait mode for convenience to avoid having to go back and apply portrait after the fact but am thinking I should use normal photo mode more.

Has anyone noticed any other differences between portrait vs photo/auto portrait modes?