A digital C-type print is a photographic print produced by exposing traditional silver halide photographic paper to digital light sources, typically lasers or LEDs, rather than through a film negative or optical enlarger. The paper is then processed through standard chemical development just like a conventional photograph. The result is a print that has the physical properties and archival qualities of a traditional color photograph but originates from a digital image file.
Think of it like printing a digital photograph onto actual photographic paper rather than inkjet paper: the substrate and chemistry are traditional, but the image source is digital.
Your digital image file is fed to a digital minilab or professional lightjet printer, which contains a laser or LED array calibrated to expose red, green, and blue channels onto chromogenic photographic paper. The three color channels combine to reproduce the full color range of the original file. The exposed paper then moves through a chemical processor that develops the silver halide layers, producing a stable, continuous-tone image.
Because the output paper uses the same chemistry as traditional color photographs, it produces a true continuous-tone image with no visible dot pattern under magnification. This distinguishes C-type prints from inkjet prints, which use tiny dots of pigment or dye.
C-type prints have several properties that make them the preferred output format for fine art photography, editorial prints, and archival applications.
Inkjet printing on fine art paper or canvas, often called giclée printing, has improved dramatically and now competes directly with C-type in many applications. The key differences are the substrate, the output mechanism, and the perceived prestige.
C-type prints use photographic paper processed chemically. Inkjet prints use paper coated to accept pigment or dye sprayed through a printhead. Each has its place: C-type excels for smooth tonal gradients and photographic naturalism. Inkjet excels for very large format output and matte fine art paper aesthetics that resemble traditional printing on watercolor stock.
In the art photography market, the production method and edition size of a print directly affect its price. Limited-edition C-type prints from recognized photographers sell through major auction houses including Christie's and Sotheby's. Edition sizes, surface specifications, paper type, and processing facility are documented in certificates of authenticity. Unsigned open editions have little secondary market value regardless of print quality.