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from the group: Woodburytype

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Pre-photographic

Photomechanical

Photographic

Albumen
Ambrotype
Bromoil
Bromoil Transfer
Carbon
Carbro
Chromogenic
Collodion POP
Cyanotype
Daguerreotype
Direct Carbon (Fresson)
Dye Imbibition
Gelatin Dry Plate
Gelatin POP
Gum Dichromate
Instant (Diffusion Transfer)
Instant (Dye Diffusion Transfer)
Instant (Internal Dye Diffusion Transfer)
Matte Collodion
Platinum
Salted Paper
Screen Plate
Silver Dye Bleach
Silver Gelatin DOP
Tintype
Wet Plate Collodion

Digital

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Notes on this view:

Known as a magic lantern slide, this woodburytype positive transparency was typically viewed by transmitted light with a magic lantern. The process for creating a woodburytype lantern slide was similar to making a woodburytype print: the printer produced a gelatin matrix from a photographic negative, used a hydraulic press to create a lead mold of the gelatin matrix, filled the lead mold with pigmented gelatin and pressed it against a glass plate. This created a positive pigment image on the plate with a slight relief; the gelatin is thickest in the image’s shadows. Lantern slides were used for a wide range of purposes including educational lectures and entertainment. In addition to the woodburytype, a range of photographic processes were used to make slides including albumen, gelatin dry plate, carbon, and wet plate collodion. Although many considered woodburytype slides inferior to albumen and wet plate collodion slides, the process was used by commercial lantern slide manufacturers. Woodbury’s own printing company as well as John Carbutt’s American Photo-Relief Printing Company were two major commercial manufacturers.