noun \ ˈā-ˌtüd , -ˌtyüd \
1: a piece of music for the practice of a point of technique.
2: a composition built on a technical motive but played for its artistic value.
- Merriam-Webster Dictionary
Mostly film and color, but also black/white film études, including different types of alteration. There might be some digital photography alterations at some point.
Chemically altered film
2008
color and texture
[some photographs have chemical alteration]
2008
Non-Photographic alterations to photographies
2004
