description Ilford Ortho Plus 80 Overview
Ilford Ortho Plus 80 is a black-and-white orthochromatic photographic film with an ISO speed of 80. It is highly sensitive to blue and green light but insensitive to red light, allowing it to be handled under a red safelight in a darkroom. Originally available primarily in sheet film formats for copy and graphic arts work, Ilford reformatted it for 35mm and 120 roll film in 2019 to meet demand from general photographers. It is suited for landscape, architecture, and portrait photography, producing distinct tonal renditions.
help Ilford Ortho Plus 80 FAQ
What type of film is Ilford Ortho Plus 80?
Ilford Ortho Plus 80 is a black-and-white orthochromatic photographic film with an ISO speed of 80. It is highly sensitive to blue and green light but insensitive to red light. This spectral sensitivity allows it to be handled under a red safelight in a darkroom.
Can Ilford Ortho Plus 80 be developed in standard C-41 chemicals?
No, it is a traditional black-and-white film that requires standard black-and-white negative development processes, such as Ilford Perceptol or Kodak D-76. It cannot be processed in C-41 color chemistry. It produces standard silver gelatin negatives for darkroom printing.
What is the visual effect of using an orthochromatic film like Ilford Ortho Plus 80?
Because it is insensitive to red light, red tones appear very dark, almost black, in the final image. This makes it excellent for enhancing contrast in landscapes where foliage needs to be separated from the sky. It also dramatically darkens skin tones, hiding blemishes and redness, which is highly prized in portrait photography.
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