Photographic chemicals, polarised light micrograph. This is a chemical mixture comprising mainly potassium ferrocyanide. Potassium ferricyanide is an orange-red salt that is used in cyanotype, a photographic printing process. Magnification: x70 when printed 10cm wide. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gaff, Karl |
Bildgröße: | 7952 px × 5304 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |