Term - Ortho
|Ortho||SWPP Photographic Glossary|
Monday 30th March 2020
Short for Orthochromatic – a high contrast film that's sensitive to all colour other than red and deep orange. As a result these can be handled under red safelight conditions and are designed primarily for reproducing halftone images or artistic black and white shots that have few mid tones.
Information provided by: SWPP