PHOTOGRAPHIC GLASS PLATE NEGATIVE AND POSITIVE SCANNING SERVICES FOR CORPORATE AND CONSUMER CLIENTS IN OXFORDSHIRE UK

PHOTOGRAPHIC GLASS PLATE NEGATIVE AND POSITIVE SCANNING SERVICES FOR CORPORATE AND CONSUMER CLIENTS IN OXFORDSHIRE UK

Oxford Duplication have established a preservation technique perfect for preserving photographic plates and prevent their valuable historical information from being lost. The emulsion on the plate can deteriorate. In addition, the glass plate medium is fragile and prone to cracking if not stored correctly.


History of Photography, Glass Plate and Tintype Ferrotype Negatives

There are 2 types of glass plate negatives and 1 type of tintype negative. Collodion Wet Plate and Gelatine Dry Plate and further below more information about Ferrotypes also known as Tintypes. 




Collodion Wet Plate Negatives - 1851 until the 1880s. Invented by Frederick Scoff Archer an English sculptor. Frederick used a viscous solution of collodion coated glass with light-sensitive silver salts. Glass plates created a sharper stable and detailed negative than paper. This was more supported by photographers who would produce several prints from one negative. These are identified by an unevenly coated emulsion with thick glass and rough edges.


Silver Gelatine Dry Plate Negatives - 1873 to around late 1920's. These were invented by Dr. Richard L. Maddox. Considered the first economically successful photographic medium because the gelatine dry plates were easier to transport and usable when dry. And because they needed less exposure to light, where thinner glass and more evenly coated emulsion these became a popular solution.




Glass Plate and Lantern Slide Negative Scanning Solutions

Photographic plates preceded photographic film as a capture medium in photography. The light-sensitive emulsion of silver salts was coated on a glass plate, typically thinner than common window glass, instead of a clear plastic film.

Glass plates were always deemed far superior to film especially for research-quality imaging because they were stable especially in large-format frames for wide-field imaging. Glass plate photographic material became less desirable in the consumer world as more convenient films were preferred. Although in the photographic fields these have still been used right upto the 1970's and in wide use by the professional astronomical fields upto 1990s.

Warm regards
Cheryl
Director


Oxford Duplication
The Centre for Duplication, Archive and Preservation
29 Banbury Road
Kidlington
OX5 1AQ

01865 457000