Show MOVIES INTHE IN THE MAKING t The By ROBERT BROTHERTON Balboa's Chief Chemist HE keystone of a motion picture picture picture pic pic- T THE ture studio Is its laboratory That is where the final re results results results re- re come corne from for after the story has been written acted and photographed the celluloid record of it must go through the darkroom before the producer knows what he has obtained for tor his efforts and expenditures The ca era man delivers his exposed exposed exposed ex ex- ex- ex posed negative film to the laboratory laboratory laboratory labora labora- tory in tin cans In the darkroom it is transferred to wooden racks being wound around them By a system pf holes punch in the celluloid celluloid celluloid cel cel- cel- cel ribbon some of the conditions conditions conditions condi condi- under which it was exposed are Indicated so that interiors and exteriors can be for purposes of developing Each rack holds feet of film In this way It is put through the various chemical solutions which are contained in large tanks When developed the film is transferred to circular drums Inthe in inthe inthe the drying room After being wiped with a chamois it is whirled around in an even temperature until dry Then it goes to the assembly room for examination All negative negative negative nega nega- tive of the same flame density Is put together and sent to the printing department That Is where the positive which you see projected In your theatre Is made The process process process pro pro- cess Is very much like printing an ordinary photograph Only in this case another ribbon of celluloid is used An unexposed positive film is placed against the developed negative and the two together are run through a printing machine The work is done with the aid of a. a high power powe electric light In a general way the positive is developed In the darkroom like the negative that the solutions used are slightly different to give a It more transparent finish It is dried on the rack on which It goes through the developer and then sent to the assembly room to be put in shape for projection as willbe will willbe willbe be explained in the next Instalment of this series Negative is the most valuable product of i the studio for on on its quality depends th the value of ot the positive Once you have hae a satisfactory satisfactory satisfactory satis satis- factory negative record there is practically no limit to the number of positive duplicates duplicates' that can an be printed from it In making an ex expensive expensive expensive ex- ex pensive scene e or a hazardous one it is usual to hold more than one camera on it to matte make certain of obtaining at least one good neg- neg alive Films are tinted in the laboratory laboratory laboratory labora labora- tory in two ways ways' First is the straight tint for solid soUd color obtained obtained obtained ob ob- by immersing a rack of positive into a tank of transparent transparent transparent trans trans- parent dye following the final wash after being developed For this blue red yellow and combinations combinations' thereof are used to get effects effects' of night fire sunlight S etc eta Then there la is atoning toning process by which two colors can be ob ob- ob Such treatment has a I legitimate use although It Is frequently frequently frequently fre fre- fre- fre resorted to to cover up poor photography photograph |