Why do outdoor photos always look bigger in broad daylight?

This is a question of light and shadow effect.

1. When there is sunshine, especially from 9 am to 10 am and from 4 pm to 5 pm,

The light is sidelight, half of the face is exposed to the sun, and half is a little shaded, so the photos taken look thinner (in fact, this is also the best prime time for portrait photography).

Try to be in direct sunlight at noon.

2. When there is no sunshine, the sunshine scatters through the clouds, and people's faces are evenly illuminated by sunlight, so the photos taken look bigger, but they are suitable for thinner people.

I hope the landlord can take good photos by using the law of light.