| Predicate | Object |
|---|---|
| rdf:type | |
| rdf:value |
Photographic processes based on the photosensitivity of certain iron compounds. Usually require intense light and thus employ contact printing. Do not use when iron sulfate is used to develop a silver image.@en
|
| dcterms:contributor | |
| dcterms:source | |
| dc:identifier |
46468
|
| dcterms:language |