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120 AMATEUR MOVIE MAKING
package. When folded the lamp measures 2% x 5 x 7 including the connecting cord. The resistance is built into the lamp body itself.
This lamp is generated in the same manner as the Minima. A carbon rod with an insulated handle is brought into contact with the points of the lamp carbons and then drawn downward across the ends of the carbons. This should be done rather slowly as the generated flame must heat the air surrounding the arc to make possible the passage of the flame across the carbon tips.
The Little Sunny draws only eight amperes and gives approximately one thousand candlepower per ampere of current consumed. In fact most of the modern, small, high intensity arcs for amateur use will deliver this approximate output. Any arc operated at less than the rated voltage will suffer a drop in initial intensity entirely out of proportion to the drop in current pressure.
The Little Sunny is provided with a wooden handle for hand use, but like the other lamps of this type, it is also arranged for stand use, a suitable stand being supplied by the manufacturer. This is a feature of this type of lamp, and which applies to all three of the lamps discussed so far. The lamp may be held in the hand and thus supported in any unusual position, enabling the operator to secure just the effect he desires. The use of two of these lamps is recommended, but in case the operator wishes to use one only, the same manufacturer supplies a special reflector which, by means of its stand, may be placed in any desired position, providing secondary light by reflection. This enables the cinematographer to make double use of his light but of course the intensity is not as great as when a second lamp is used for the secondary lighting. This reflector, it may be added, makes an unusually serviceable reflector for exterior work and one which is far more compact than the compo-board type described in the preceding chapter.
This reflector has a surface 36 x 58 inches and is supplied with a six foot stand. When packed for transport the package measures 18 inches long by two inches thick.
The arc lamps which have just been described are essen