Society of Motion Picture Engineers : incorporation and by-laws (1919)

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mine. Deep blue and deep purple reduce apparent contrast. The purple gave a picture on which it was noticeably hard to focus the eyes satisfactorily. Pale carmine was the first tint run and it afterwards developed that some of the judges had not understood the system on this first color, and through an oversight, this was not run again. This probably accounts for its eccentric behavior. I. Untinted Light Unreduced Brightness III. INCREASE NO EFFECT DECREASE INCREASE Pale Pale Yellow All Others 1 Amber Pale Lemon Very Pale Greer 1 Clearness 5 Very red ]. Pale blue Blue 6 I Blue ; Grass green Pale rose Red blue Deep blue Deep blue green Pale amber Deep carmine Deep purple Pale yellow Deep amber Deep violet ^Pale bluel Deep red Pale lemon I green j 3 Very pale | Pale olive Pale carmine I green 3 Lemon Contrast All others Blue Deep blue Red blue Deep purple 14 Deep violet Deep red Deep blue green —SUMMARYNO EFFECT 3 II. Untinted Light Reduced to INCREASE Red blue Pale carmine Deep red Pale amber Pale yellow Pale lemon Lemon Deep amber Very pale green All others NO EFFECT Pale blue Pale rose Deep carmine Pale olive Deep violet Deep blue Untinted Light Reduced to DECREASE INCRE Brightness Very red blue Blue Deep blue Deep purple Deep violet 9 Grasi green Pale blue green Deep blue green Clearness Deep blue Deep purple Deep blue green 17 Contrast Deep purple 19 -SUMMARYNO EFFECT NO EFFECT All others All others All others Deep blue Pale carmine Deep blue green Deep blue Pale carmine Pale carmine DECREASE Brightness Deep purple -SUMMARYNO EFFECT Clearness Deep purple IV. Untinted Light Reduced to ^ Contrast Deep purp 17 INCREASE NO EFFECT Pale carmine Pale carmine DECREASE ightness —SUMMARYNO EFFECT DECREASE 17 Clearness Deep purple 19 1 1 Contrast Pale carmine The above results are not complete, as the committee has not yet been able to determine the quantity of light absorbed by the dye, and accordingly the ratio between the actual energy passing through the tinted and untinted films. When this is known, it is expected that the advantage of tints will be still more strongly marked. The committee hopes to have this information by the next meeting of the society. 120