International photographer (Jan-Dec 1934)

Record Details:

Title:
International photographer
Date:
Jan-Dec 1934
Publisher:
Hollywood : International Photographers of the Motion Picture Industry
Volume:
International photographer (Jan-Dec 1934)
Leaf #:
00025
Language:
English
Subjects:
Motion Pictures, Film Industry Technical Magazine
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
International Photographer, published by the Hollywood local of the film industry union for cameramen and camera operators, reported news of the arts and crafts of the motion picture, with an emphasis on cinematography. -- David Pierce, 2011/2013
Date Added:
March 28, 2024
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January, 1934 The INTERNATIONA PHOTOGRAPHER Nineteen This is the tenth installment of the Cinematographer's Book of Tables compiled and computed by Mr. Fred Westerberg, one of the technical editors of THE INTERNATIONAL PHOTOGRAPHER. Cinematographer's BOOK of TABLES By FREC WESTERBERG There are several more installments to come probably concluding with the April issue, 1934, and when completed the tables will constitute a handy reference guide welcome to all cinematographers, professional and amateur. Take note that the tables are so placed in the magazine as to be easily cut out and bound into a small pocket ring book. Cut down the middle of page 19; then trim top and bottom to fit your cover; punch holes to fit rings on inner and outer edges of magazine pages 19 and 20. When all tables have been bound into your ring book the pages will number from 1 to 52 inclusive with complete index unless others are added, which seems very likely at this mailing. 12-E TIME CONVERTED TO FEET OF FILM 16 mm. FILM TIME REQUIRED TO EXPOSE VARIOUS LENGTHS OF FILM AT DIFFERENT CAMERA SPEEDS 26B Feet of Film Exposed CAMERA SPEED IN PICTURES PER SECOND 8 12 16 24 32 48 64 RUNNING TIME IN MINUTES AND SECONDS 1 0— 5 0 — 3.3 0— 2.5 0— 1.7 0— 1.2 0— .8 n .6 2 10 6.7 5.0 3.3 2.5 1.7 1.2 3 15 10.0 7.5 5.0 3.8 2.5 1.9 4 20 13.3 10.0 6.7 5.0 3.3 2.5 5 25 16.7 12.5 8.3 6.3 4.2 3.1 6 30 20.0 15.0 10.0 7.5 5.0 3.8 7 35 23.3 17.5 11.7 8.8 5.8 4.4 8 40 26.7 20.0 13.3 10.0 6.7 5.0 9 4 5 30.0 22.5 15.0 11.2 7.5 5.6 10 50 33.3 25 16.7 12.5 8.3 6.3 12 1—00 40.0 30 20 15.0 10.0 7.5 14 10 46.7 35 23 17.5 11.7 8.8 16 20 53.3 40 27 20.0 13.3 10.0 18 30 1—00 45 30 22.5 15.0 11.3 20 40 07 50 33 25.0 16.7 12.5 22 50 13 55 37 27.5 18.3 13.8 24 2—00 20 1 — 00 40 30.0 20.0 15.0 26 10 27 05 43 32.5 21.7 16.3 28 20 33 10 47 35.0 23.3 17.5 30 30 40 15 50 37.5 25 18.8 32 40 47 20 53 40 27 20.0 36 3—00 2—00 30 1—00 45 30 22.5 40 20 13 40 07 50 33 25.0 44 40 27 50 13 55 37 27.5 48 4—00 40 2—00 20 1—00 40 30.0 52 20 53 10 27 05 43 32.5 56 40 3—07 20 33 10 47 35.0 60 5—00 20 30 40 15 50 37.5 64 20 33 40 47 20 53 40.0 68 40 47 50 53 25 57 42.5 72 6—00 4—00 3—00 2—00 30 1—00 45.0 76 20 13 10 07 35 03 47.5 80 40 27 20 13 40 07 50.0 84 7—00 40 30 20 45 10 52.5 88 20 53 40 27 50 13 55.0 92 40 5—07 50 33 55 17 57.5 96 8—00 20 4—00 40 2—00 20 1—00.0 100 20 33 10 47 ii? 23 02.5 PROJECTION 35 mm. FILM EFFECT OF PROJECTION ANCLE ON SCREEN PROPORTION AND ON THE RECTANGULAR SHAPE OF THE PICTURE A ,M 1 RS_ AM PT~CM Area of Picture Masked To Obtain Rectanculaa. Picture On The Screen 1 B y 1 P R s i— — — ~~~ ^-^ A ^^ ^"^d^ s^ Projection ^ Anole. AM=AO \^^ ^^ O &^— — " ~~ B C S^ AC _ Sine Z. CCA AB~ Sine/. ACD AM _ Sine X. ACM CM "Sine/. MAC EFFECT OF PROJECTION ANCLE ON SCREEN PROPORTION Focal Length of Proj. Lens in Inches RELATIVE HEICHT OF PICTURE AC FOR VARIOUS PROJECTION ANCLES. "„ (see diagram). AB 5° 10° 15° 20° 25° 30' 3 1.0126 1.033 1 nil.; 1.104 1.097 1.157 1.149 1.225 1.214 3 'A 1.0113 1.031 1.059 4 1.0104 1.029 1.056 1.093 1.143 1.207 4y2 1.0096 1.027 1.054 1.088 1.138 1.201 5 1.0091 ■ 1.026 1.H51 1.048 1.086 1.135 1.1 ''6 6 1.0082 1.024 1.084 1.130 1.189 EFFECT OF PROJECTION ANCLE ON RECTANGULAR SHAPE Focal Length of Proj. Lens in Inches RATIO OF TOP TO BOTTOM PICTURE WIDTH DC FOR VARIOUS PROJECTION ANCLES. " (see diagram). 5° 10° 15° 20° 25° 30° 3 .9827 .966 .948 .931 .911 .891 3'A .9851 .970 .956 .939 .923 .906 4 .9869 .974 .961 .947 .932 .917 4J4 .9884 .976 .966 .953 .939 .926 5 .9894 .979 .968 .957 .945 .933 6 .9913 .982 .975 .964 .954 .944 Based on Standard Projection Aperture .600 by .825 of an inch.