Early scientific photography. Photograph showing the paper calotype negative made by Sir John Herschel of his father's telescope mounting in 1839. This was the year in which W.H.F.Talbot patented the paper-based negative-positive process known as the calotype or talbotype. The photograph was taken around the time when Sir William Herschel's telescope was being dismantled on safety grounds | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 4311 px × 4136 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |