American Cinematographer, Volume 9 Number 7 
Save page Remove page  Previous  11 of 36  Next 


small (250x250 max)
medium (500x500 max)
Large
Extra Large
large ( > 500x500)
Full Resolution
All (PDF)

This page
All

October, 1928 AMERICAN CINEMATOGRAPHER Eleven The remainder represents the width in feet of the set covered at the chosen distance. Fig. 2 shows in tabular form the horizontal and vertical dimensions embraced by lenses of different focal lengths at distances varying from 5 feet to 80, also the camera or lens distance ratio for same size images with lenses of different focal length and the angles of view included with the different lenses. It will be seen that 40 feet away with a 2inch lens a set 20 feet wide x 15 feet high is included, and all these distances or intermediate distances can be read directly from the scale by ruling off with a straight edge as previously described. Fig. 8 shows the application of the scale when designing a set. The horizontal boundary lines represent the angle of view included by a 2inch lens on the horizontal base line of 1 inch. It is, of course, presumed that this line exists at the floor level. These lines are obtained from the outer scales of the rule. The dotted line marked "Vertical Boundary Lines" are plotted from a vertex point which is removed from the vertex of the horizontal boundary lines in proportion to the height of the lens from the ground. This probably will average 5 feet and the vertex is therefore plotted 5 scale divisions apart from the horizontal boundary line vertex. The angle included by these vertical boundary lines is obtained from the 4 and 2 scales of the rule and its point of origin is, of course, at the lens. Now.. if a straight line is drawn, equally dividing the horizontal boundary lines, this becomes the ground, or floor line, and where the lower vertical boundary line cuts, this is the point at which the floor first appears in the picture. Parallel with this ground line is drawn the ceiling line, and the separation of the two will depend upon the height of the studio, then the top vertical boundary line where it first cuts the ceiling line shows directly the available head room. From such a diagram it can be calculated just what details of any particular set will be included at any distance from the lens. The scale is most conveniently made up so that 1,4 of an inch on the scale divisions equals one foot and should be constructed of thin brass. A scale must be constructed for each lens of different focal length. The scale, of course, will not vary due to differences in focal length, but the outer and inner angles will change with the focal length. As the focal length increases the angle included will become less. A New Directory of Theatres Herbert D. Seibert & Co., 126 Front Street, New York, have just published a book containing a complete list of theaters in the United States and Canada with the street address, seating capacity, film buyer, booker, purchasing agent, projectionist and telephone number. Besides this a great deal of other data is shown, such as admission price, sound equipment used, number of times a week program is changed and the like. This new publication of over a thousand pages also covers Chain Thea: tel's, Discontinued Theaters, List of Supply Dealers, Producers, Film Exchanges and Film Boards of Trade. It sells for $10 a year and is to be issued semiannually. A $2,000,000 Film Al Rockett, production and studio manager for First National Pictures, is in New York this week discussing plans for future production with Irving D. Rossheim, president; Ned Depinet, sales chief, and Mrs. Florence Strauss, head of the scenario department. Mr. Rockett left the West Coast for the East just after starting work on a series of sound stages at the Burbank studios. In his absence work on these stages is being rushed, with workmen busy twentyfour hours a day. While in the East Mr. Rockett will also complete plans for starting production on "The Miracle," the picturization of Max Reinhardt's great stage spectacle, which First National recently won the right to screen after a controversy with another production company. This picture is expected to cost around two million dollars, and will be the biggest and most spectacular ever attempted by First National.
Object Description
Title  American Cinematographer, Volume 9 Number 7 
Description  Volume 9 Number 7, October 1928, pages 136. 
Subject Topical  CinematographyUnited StatesPeriodicals; American Society fo Cinematographers, Inc.Periodicals. 
Format  periodical 
Catalog Record  http://catalog.oscars.org/vwebv/holdingsInfo?bibId=25713 
Publisher  American Society of Cinematographers, Inc. 
Date  October 1928 
Source  Core Collection Periodicals 
Repository  Margaret Herrick Library, Academy of Motion Picture Arts and Sciences 
Language  English 
Rights  Public domain material. 
Description
Title  American Cinematographer, Volume 9 Number 7 
Description  Page 11 
Format  periodical 
Date  1928 
Full text  October, 1928 AMERICAN CINEMATOGRAPHER Eleven The remainder represents the width in feet of the set covered at the chosen distance. Fig. 2 shows in tabular form the horizontal and vertical dimensions embraced by lenses of different focal lengths at distances varying from 5 feet to 80, also the camera or lens distance ratio for same size images with lenses of different focal length and the angles of view included with the different lenses. It will be seen that 40 feet away with a 2inch lens a set 20 feet wide x 15 feet high is included, and all these distances or intermediate distances can be read directly from the scale by ruling off with a straight edge as previously described. Fig. 8 shows the application of the scale when designing a set. The horizontal boundary lines represent the angle of view included by a 2inch lens on the horizontal base line of 1 inch. It is, of course, presumed that this line exists at the floor level. These lines are obtained from the outer scales of the rule. The dotted line marked "Vertical Boundary Lines" are plotted from a vertex point which is removed from the vertex of the horizontal boundary lines in proportion to the height of the lens from the ground. This probably will average 5 feet and the vertex is therefore plotted 5 scale divisions apart from the horizontal boundary line vertex. The angle included by these vertical boundary lines is obtained from the 4 and 2 scales of the rule and its point of origin is, of course, at the lens. Now.. if a straight line is drawn, equally dividing the horizontal boundary lines, this becomes the ground, or floor line, and where the lower vertical boundary line cuts, this is the point at which the floor first appears in the picture. Parallel with this ground line is drawn the ceiling line, and the separation of the two will depend upon the height of the studio, then the top vertical boundary line where it first cuts the ceiling line shows directly the available head room. From such a diagram it can be calculated just what details of any particular set will be included at any distance from the lens. The scale is most conveniently made up so that 1,4 of an inch on the scale divisions equals one foot and should be constructed of thin brass. A scale must be constructed for each lens of different focal length. The scale, of course, will not vary due to differences in focal length, but the outer and inner angles will change with the focal length. As the focal length increases the angle included will become less. A New Directory of Theatres Herbert D. Seibert & Co., 126 Front Street, New York, have just published a book containing a complete list of theaters in the United States and Canada with the street address, seating capacity, film buyer, booker, purchasing agent, projectionist and telephone number. Besides this a great deal of other data is shown, such as admission price, sound equipment used, number of times a week program is changed and the like. This new publication of over a thousand pages also covers Chain Thea: tel's, Discontinued Theaters, List of Supply Dealers, Producers, Film Exchanges and Film Boards of Trade. It sells for $10 a year and is to be issued semiannually. A $2,000,000 Film Al Rockett, production and studio manager for First National Pictures, is in New York this week discussing plans for future production with Irving D. Rossheim, president; Ned Depinet, sales chief, and Mrs. Florence Strauss, head of the scenario department. Mr. Rockett left the West Coast for the East just after starting work on a series of sound stages at the Burbank studios. In his absence work on these stages is being rushed, with workmen busy twentyfour hours a day. While in the East Mr. Rockett will also complete plans for starting production on "The Miracle" the picturization of Max Reinhardt's great stage spectacle, which First National recently won the right to screen after a controversy with another production company. This picture is expected to cost around two million dollars, and will be the biggest and most spectacular ever attempted by First National. 