標準號：BS ISO 8395-1995
中文標準名稱：電影攝影技術.帶磁性聲跡的70mm影片發行拷貝復制用試驗膠片.規范
英文標準名稱：Cinematography - Test films for the reproduction of 70 mm motion-picture release prints with magnetic stripes - Specifications
標準類型：G81
發布日期：1995/10/15 12:00:00
實施日期：1995/10/15 12:00:00
中國標準分類號：G81
國際標準分類號：37.060.20
適用范圍：This International Standard specifies basic technical characteristics for magnetic sound test films used for checking, adjusting and measuring 70 mm motion-picture projector sound systems and sound repro-duction channels of motion-picture installations. This International Standard includes specifications for test films intended for checking, adjusting and measuring of: a) azimuth of the magnetic head gaps (azimuth alignment test film; see table 1); b) output level balance of several motion-picture projectors or systems and interchannel balance on each projector or system (signal level test film; see table 2); c) frequency response of the sound reproduction channels (multi-frequency test film; see tables 3 and 4); d) non-uniformity in velocity of film travel (flutter) (flutter test film; see table 5).