I do understand, that atmospheric radiation can cause interference in readings, but mostly objects were colder than air temperature, nomatter I pointed at brick wall or at building made out of wood, and did it from different angles, but wall temperature readings was colder than (-12'C).
Is this normal and I just have to change emissitivity settings, reflected temperature settings, distance settings, viewing angle and others, or is there problem with my camera.
In attachment - wooden building (same time,air temperature -12'C).