Portraits are usually posed photographs, however if you are taking photos of people that are not posed in a traditional portrait fashion then you would refer to them as 'candid'.

You could use that loosely to describe other areas of photography but you would most likely use something more suitable.

Portraits are usually posed photographs, however if you are taking photos of people that are not posed in a traditional portrait fashion then you would refer to them as 'candid'.

You would typically call other photography types that do not involve people, something more appropriate.