Relationships Broader Term:  photograph Related Term:  blueprint n. ~ 1. A photographic process that uses Prussian blue for the image to produce a positive print from a negative. - 2. A print made by [..]

Blue-toned photographic prints produced by the blueprint process, not including reproductive prints of architectural or other technical drawings; for these, use "blueprints" or "bluelin [..]

A one-of-a-kind photographic print made by placing opaque or translucent objects or a negative directly on a support (paper, card, textile, etc.) sensitized with a solution of iron salts. When exposed [..]

A process invented by Sir John Herschel

Invented by Herschel in 1842, Cyanotype produces characteristic Prussian Blue images through the combination of iron salts with potassium ferricyanide. Once coated, the paper can either be left to dry [..]

An early printing-out process invented in 1842 by Sir John Herschel. The paper is coated with ferric salt and potassium ferricyanide and is put in direct contact with the negative to create an image. When exposed to light the areas not covered by dark imagery or objects became a bright blue color. The paper is then washed in warm water to fix the i [..]

is an early photographic technique that gives a cyan blue print. It uses paper coated in soluble light sensitive salts which when exposed to ultraviolet light (often sunlight) turns blue and insoluble. Unexposed salts dissolve away when the paper is washed leaving an image. This is the process that gave the engineering "blueprint" [..]

Invented by Sir John Herschel in 1842. A mixture of dichromate and iron salts was coated on plain paper. Too slow for camera use, this paper could be exposed under a negative or more commonly under an [..]

A planographic process employing the blueprint technique. See Neufert Suite

one of the earliest photographic processes, it is produce by the exposure of light to a ground consisting of iron salts. The prints have a heavy blue overtone.