Photography. Materials for direct-positive colour-print cameras. Determination of ISO speed Ingestion-build-146508 their perceived complexity or cost

their perceived complexity or cost

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Photography. Materials for direct-positive colour-print cameras. Determination of ISO speed Ingestion-build-146508 their perceived complexity or cost1 Scope This International Standard specifies a method for determining the ISO speed of materials for direct positive colour print cameras when used in a camera for pictorial photography. It also applies to diffusion transfer and conventional colour print materials directly exposed in cameras and processed in or out of the camera. This International Standard does not apply to materials used for copying or duplicating applications.