Hierarchy classification:

1. top of the aat hierarchies
2. Physical Attributes Facet
3. Conditions and Effects (hierarchy name)
4. [conditions and effects by specific type]
5. [conditions and effects for photography]

Additional parents:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques
4. processes and techniques by specific type
5. image-making processes and techniques
6. photography and photographic processes and techniques
7. photographic techniques
8. photographic processing and presentation techniques

Anotations

Scope note:

In photography, refers to the usually unintended optical effect caused by reflected light at the time of initial film exposure, or the resulting halo surrounding the boundaries of light-emitting or reflecting sources in the image printed from this film. Modern photographic films are coated with an 'anti-halation layer' to prevent this effect.