SPECIALIST GLASS NEGATIVE PLATE SCANNING
There are two basic types of glass plate negatives: collodion wet plate and gelatin dry plate. Wet plate negatives, invented by Frederick Scoff Archer in 1851, were in use from the early 1850s until the 1880s. Using glass and not paper as a foundation, allowed for a sharper, more stable and detailed negative, and several prints could be produced from one negative.
Collodion wet plate negatives characteristically have uneven emulsion coatings, and thick glass with rough edges. Occasionally, the photographers thumb will be visible on the corner or edge of the plate (from holding the plate while coating it in the collodion emulsion).
Silver gelatin-coated dry plate negatives, on the other hand, were usable when dry and thus more easily transported, and required less exposure to light than the wet plates. Invented by Dr. Richard L. Maddox and first made available in 1873, dry plate negatives were the first economically successful durable photographic medium. Dry plate negatives are typically on thinner glass plates, with a more evenly coated emulsion. Dry plate glass negatives were in common use between the 1880s and the late 1920s.
Working with museums, historical archival companies, corporations and private clients, we can cater for small units to bulk large orders in the many 1000's. We can save your scanned imags on CD, DVD or USB drive, or if you prefer we can upload them to cloud or other online platforms.
|LANTERN SLIDES, PHOTOGRAPHIC NEGATIVE GLASS PLATES, TINTYPES AND
SHEET TRANSPARENCYSCANNING SOLUTIONS.
All plates and transparencies are digitised to their respective dpi, unless
you have specific requirements. Our servies includes Adobe Post Production,
tone and sharpening, all in line with The National Archives Standards.
Contact firstname.lastname@example.org Telephone: 01865 457000
|SIZE (INCHES)||SIZE (MM)||LANTERN SLIDES||1+||10+||25+||50+||100+||250+||500+||1000+||5000+||10000+|
|3¼ × 3¼||lantern slides||12.00||6.00||3.00||2.75||2.50||2.25||2.00||1.75||1.50||1.25|
|SIZE (INCHES)||SIZE (MM)||PHOTOGRAPHIC GLASS PLATES||1+||10+||25+||50+||100+||250+||500+||1000+||5000+||10000+|
|3¼ × 4¼||83 × 108||"quarter-plate"||12.00||6.00||3.00||2.75||2.50||2.25||2.00||1.75||1.50||1.25|
|4¾ × 6½||120 × 165||"half-plate" glass plates||14.00||7.00||3.25||3.00||2.75||2.50||2.25||2.00||1.75||1.50|
|6½ × 8½||216 × 165||"full-plate" glass plates||15.00||7.50||3.50||3.25||3.00||2.75||2.50||2.25||2.00||1.75|
|SIZE (INCHES)||SIZE (MM)||SHEET FILM (TRANS OR X-RAY)||1+||10+||25+||50+||100+||250+||500+||1000+||5000+||10000+|
|4 × 5||102 × 127||sheet film||12.00||6.00||3.00||2.75||2.50||2.25||2.00||1.75||1.50||1.25|
|5 × 7||127 × 178||sheet film||12.00||6.00||3.00||2.75||2.50||2.25||2.00||1.75||1.50||1.25|
|4 × 10||102 × 254||sheet film||13.00||6.50||3.25||3.00||2.75||2.50||2.25||2.00||1.75||1.50|
|8 × 10||203 × 254||sheet film||14.00||7.00||3.25||3.00||2.75||2.50||2.25||2.00||1.75||1.50|
|7 × 17||178 × 432||sheet film||15.00||7.50||3.50||3.25||3.00||2.75||2.50||2.25||2.00||1.75|
|11 × 14||279 × 356||sheet film||16.00||8.00||4.00||3.25||3.00||2.75||2.50||2.25||2.00||1.75|
|8 × 20||203 × 508||sheet film||17.00||8.50||4.25||4.00||3.25||3.00||2.75||2.50||2.25||2.00|
|12 × 20||305 × 508||sheet film||18.00||9.00||4.50||4.25||4.00||3.25||3.00||2.75||2.50||2.25|
|14 × 17||356 × 417||sheet film||18.00||9.00||4.50||4.25||4.00||3.25||3.00||2.75||2.50||2.25|
|16 × 20||406 × 508||sheet film||19.00||9.50||4.75||4.50||4.25||4.00||3.25||3.00||2.75||2.50|
|20 × 24||508 × 610||sheet film||19.00||9.50||4.75||4.50||4.25||4.00||3.25||3.00||2.75||2.50|