Business screen magazine (1957)

BUSINESS SCREEN TECHNICAL REPORT: FILM ANALYSIS Cues to Proper Application of New Eastman Color Internegative and Intermediate Films for Best Results PROGRESS IN Color film materials, procesfiiig methods and laboratory equipment hit a pretty rapid pare during the past two years. Greatly improved printing stocks, offering greater fidelity in reproduction from camera to the screen and speedier delivery at more economical cost were important goals for both film manufacturers and processors. With color accounting for a very high percentage of all sponsored and educational motion pictures now being produced, these goals were equally important to producers and their clientele. But every phase of de\elopment require* considerable periods of research and pre-testing before new films are introduced to the field and then a period of consumer education inevitably follows to insure the proper application of new tools. Take the case of the two new films recently introduced by Kodak's Motion Picture Film Department, both of which can be used for producing color duplicate negatives to obtain 16mni prints on Eastman Color Print Film. Type 7382. These new products are Eastman 16mm Color Internegative Film. Type 7270 and the Eastman 35mm and 16mm Color Intermediate Films, Type 5253 (35mm) and Type 7253 (T6mm). 16inm Internegative Film First to be introduced was the 16nim Internegative Film. Type 7270. This was originalh designed ,to make color duplicate negatives '(Kodak calls "em internegatives) directly from Kodaclnoine. Designed for use with Commercial Kodachrome, very satisfactory results have been obtained with other Kodachrome films. From duplicate negatives thus obtained. 16mm contact prints are made for general release. It has also been discovered that this same material can be used for making 35mm blowups from 16nnn Kodachrome originals by printing from Kodachrome onto 35mm internegative of the same material, known as Type 7270. 35mm internegative stock. 35mm color prints for theatrical and television use can then be made from this 35mm enlarged internegative by contact printing. The pniblem of iiblainiiig color prints in quantity, with minimum loss original fidelity and at reasonable cost has been a matter of concern since the introduction of East man Color Negative Film. Type 5248. For some time, the company's research people worked on a material which could be used in duplication as in black and white production, by means of a master positive and a duplicate negative. Although this approach is much more complex for color processing, a practical system land the necessary films) was finally evolved. Prints through this system are produced by first making a color master positive on Eastman 35nun Color Intermediate Film. Type 5253. A reduction negative is then made on 16nnn Color Intermediate Film. T\]je 7253. resulting in a 16nnn color duplicate negative. Contact prints are then made onto 16nnn Eastman Color Print Film. While not giving absolutely perfect match to a print from the original, this system is said to come nearly as close as its black and white counterpart. It should make the production of 16mm prints from a 35mm color negati\e nmch more practical. Differ in Contrast Levels Since both Color Interne^aliie Film, Type 7270 and the Color Intermediate Film. Type 7253. are used to produce 16mm color duplicate negatives from which 16mm color prints are made, there has been some confusion as to the differences between these two films. One big and important difference lies in the contrast levels of the two films. In the case of Color Internegative, Type 7270. printing is done from Kodachrome. which is of print contrast. The Type 7270 must, therefore, be low in contrast. In the case of the Color Intermediate Films. Type 5253 and Type 7253. the process starts with a negative and simply reproduces it. It is necessary, therefore, to use a material which, when printed back onto itself, does not change the overall contrast. This requires a material of considerably higher contrast which ivotild not he satisfactory for use with Kodachrome. R" Editorial Acknowledgment -♦f A highly-interesting series of articles in this issue completes the "Views from the Bridge" feature in our recent 7th Annual Production Review. Matt Farrell I page 18i is president of Farrell and Gage Films. Inc.: Howard Lesser, who authored the prophecy on page 27, is president of Knickerbocker Productions. Inc. Charles ( Cap I Palmer by-lines on page 28. He is executive producer at Parthenon Pictures. The informative discussion of widescreen visual presentation ideas on page .34 w-as contributed by John H. Rose, head of Visualscope, Inc. Finally, but far from least, is James E. MacLane's "Truth is .Stronger Than Fiction" which the executive producer of Film .Associates of Michigan wrote especially for us . . . and vou on Page 56. S' DIAGRAM ILLUSTRATING USE OF EASTMAN COLOR INTERNEGATIVE AND COLOR INTERMEDIATE FILMS FOR MAKING COLOR PRINTS FROM KODACHROME COMMERCIAL FILM, TYPE 5268 (I6MM) ORIGINAL: FROM EASTMAN COLOR NEGATIVE FILM, TYPE 5248 (35MM1 ORIGINAL REVERSAL COLOR PRlt^^ F\LM,T\PE ^ REVERSAL COLOR Ptt\NT I FILM, TYPE 5769 (ib-T-v,) Print /to mm COLOR. ^ INTER. ^ NEaftTlME flLM, TVPE7Z70 COLOR. . PRINT ■♦ FILM TYPE 7382 tntef n<;^0t<tv Co/or ^£ /ease Print 3^ m/n Co/or /n terneqoiiv'e COLOR INTER NE6ATIVE FILM,TYPES27C Co/or /?e/£ase Print COLOR PRINT FILIv\, TYPE 5382 55 trim Co/or Master COLOR INTtRMEPIATE F1LM,TYPE 5253 Co/or Du^/icate COLOR INTERMEDIATE F1LM,TYPE5253 Cola' 2' Co tor Release Print COLOR PRINT FILM, Colo, Rele^a Print TYPE 5382 COLOR INTERMEPIATE FILM, TYPE 7253 ^.lu",...; ,^ COLOR PRINT ^ FILM, TYPE 7382 (,!'»"■•"') 54 BUSINESS SCREEN MAGAZINE