Kinematograph year book (1944)

Record Details:

Title:
Kinematograph year book
Date:
1944
Publisher:
London : Kinematograph Publications Ltd.
Volume:
Kinematograph year book (1944)
Leaf #:
000238
Language:
English
Collection:
Year Book and Global Cinema
Format:
Annuals
Contributor:
Library of Congress, MBRS, Moving Image Section
Sponsor:
Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division
Coordinator:
Media History Digital Library
Description:
Date Added:
November 10, 2022
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224 The Kinematograph Year Book. MEASUREMENT OF SCREEN BRIGHTNESS Mount photometer one-third the height of screen, and take readings at each end, in the centre, and intermediately (five in all). Average of readings gives light intensity in foot-candles ; a recommended figure is from 7 to 10 foot-candles. MISCELLANEOUS FIGURES Standard Electricity Supply (from Grid) : 230v. single-phase or 400v. three-phase, 50 cycles per second. Accumulators : Lead-acid type, 2.6 volts per cell fully charged, specific gravity of electrolyte 1.280; fully discharged 1.8 volts per cell, specific gravity of electrolyte 1.150. Alkaline type : 1.2 to 1.1 volts per cell. Gas Supply : Meter reading (cubic feet) x declared value in B.T.U.s -H 100,000= therms. Recommended Temperature of Auditorium : Winter 55° to 65° F. Summer 10° below outside temperature. Sizes Of Posters : Double-crown : 30 in. by 20 in. Quad-crown : 40 in. by 30 in. Four-sheet : 60 in. by 40 in., larger sizes proportionately. RUNNING TIME OF FILM Standard speed of 35-mm. sound film=24 frames per second = 90 ft. per minute = approximately 11 minutes per 1,000 ft. Ft. 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 min. min. min. min. min. h. m. h. m. h. m. h. m. h. m. 0 11 22 33| 444 554 1 64 1 18 1 29 1 40 100 12 234 344 454 564 1 8 1 19 1 30 1 41 200 2 134 241 354 464 58 1 9 1 20 1 31 1 42 300 14J 25| 364 48 59 1 10 1 21 1 32 1 43i 400 4* 15| 26| 38 49 1 1 11 1 22 1 334 1 444 500 5* 161 28 39 50 1 1 1 12 1 234 1 344 1 454 600 6i 18 29 40 51 1 2 1 134 1 244 1 354 1 464 700 8 19 30 41 52 1 34 1 144 1 254 1 364 1 48 800 9 20 31 42 534 1 44 1 154 1 264 1 38 1 49 900 10 21 32 434 544 1 54 1 164 1 28 1 39 1 50