Term - Ortho

OrthoSWPP Photographic Glossary

Tuesday 21st January 2025  

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Ortho

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.



 

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