BS ISO 9642:2020 pdf free.Cinematography Time and control code for 24,25 and 30 frames per second motionpicture film systems Specifications.
BS ISO 9642 1 Scope This document specities digital code for mats and modulation methods br motion-picture bum to be used for timing, control, editing and synchronization purposes. This document also specifies the relationship of the codes to the motion picture frame.
Two types of code are described in this document. The first type, Type C, is a continuous code which is very similar to the continuous code specified in IEC 60461. This type of code can be used in situations where the film is moving continuously at the time of both recording and reproduction.
The second type of code, Type 8, is a non-continuous, block-type code, composed of blocks of data, each complete in itself, with gaps between the blocks. It is designed so that the code can be recorded and played back on equipment with intermittent film motion but still be decoded with the same type of electronic equipment used to read the Type C or continuous time code.
2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO/IEC 2022. Information technology — Character code structure and extension techniques ISO 4241. Cinematography — Projection film leader (time-based), trailer and cue marks — Specifications
ISO 8758, Cinematography — Photographic control and data records on 16 mm and 35 mm motion-picture film and prints — Dimensions and location
When the time code is used on release prints, the time code of the “picture start” frame shall be 01 hours, 00 minutes, 00 seconds, 00 frames. All frames on the reel prior to the “picture start” frame shall each have the time code 01 hours, 00 minutes, 00 seconds, 00 frames. If the film is longer than one reel, the “picture start” frame and all preceding frames on the second reel shall be 02 hours, 00 minutes, 00 seconds, 00 frames. Successive reels shall be numbered likewise with the number of hours increasing sequentially and the minutes, seconds and frames being zero for the “picture start” frame.BS ISO 9642 pdf download.