Amateur movie making (1928)

AMATEUR MOVIE MAKING 113 By using this as a basis of comparison, we find that our small portable lights will give such a reflection not greatly inferior to sunlight. The fact remains that satisfactory amateur cinematography may be carried on indoors by the light furnished by a single one of the small, modern cinema arc lights. Two are better of course, as we have seen, but one will serve. Let us compare the arc, which is the most common amateur cinema 'light, with daylight. ARC Constant in intensity giving us a stable factor for calculation of exposure. Ready for use at any time. Intensity varied to known degree by varying distance between subject and light, or by adding more units. Position relative to subject under control, allowing the best illumination for each particular subject. Limited area of source allowing more definite modelling. Vertical angle secured and maintained at will of cameraman, giving good, effective lighting. Allows the busy man to make films during that period which is almost his only leisure, the evening. During rainy, cold and stormy weather the arc enables the cinematographer to go right ahead with his work. Stop motion, cartoon work, DAYLIGHT Variable intensity making necessary a complete exposure computation for each exposure. Have to wait f or ' favorable light or risk spoiling shot. Intensity not under control, but naturally erratic. Proper illumination only possible by changing position of subject with regard to the sun, which often spoils a desired effect. Diffused light which must be screened or reflected to secure proper modelling. Vertical angle constantly changing which will give a changing light effect, which is not too good. Limits film production to daylight, and even then to periods when suitable light is present. Bad weather results in the camera being shelved. Daylight is too variable to