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The Optioal Magio Lantern Journal and Photographic fniarger.
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An oil lantern in which all superfluous parts are dispensed with, is made by the ElliottClymer Co., Auburn, N.Y. This style (Fig. 2) they say has been designed to meet the wants ofthose amateur photographers who wish a simple and practical lantern for home use. The framework is of mahogany, and the coneand chimney of Russian iron, and the fittings of brass. The condenser is 44in. in diameter.
This lantern, in addition to
recciving negatives for use for
making bromide enlargements. The whole packs into a box measuring Sin. by I4in. by 12in. Messrs. J. B. Colt and Co., New York City, N.Y., make a speciality of Parabolon lanterns, both for oil and limelight. In Fig. 3, which is gam, of a skeleton type, the oil is contained in a reservoir, the lowest part of which is lower than the part ot the round wick to which the oil is fed; and the handles for adjusting the wick are made of hard rubber, which remain cool, although the adjacent parts may become hot. The lantern stand 1s 1gin. long by Sin.wide, and contains three supports, upon which can be adjusted the lamp, condenser, and objective. A spun brass hood connects the lamp and the condenser. Two other forms (Figs. 4 and s), which can be used for the purpose of making enlargements,
Fig. 3
exhibiticn work, is fitted for ¢
have the space between the condenser and lens:
enclosed. The negative from which an enlargement is to be made may be secured in the desired position by a lever shown in the cuts.
Fic. 4.
Limelight can also be used in the Parabolon lanterns, and as the illuminating chamber is detachable, it is only necessary to substitute one back for the other. This chamber (Fig. 6) is supplied with both vertical and lateral motions, so that it can readily be adjusted to the condenscrs.
Although Messrs. Colt assure us that the parabola is the best form of reflector for lanterns, we fail to sce how they overcome the confusion which will be caused by two sets of rays, onc set of which will be from the direct light, whilst the other will be from the parabola.
A lantern balanced on a swivel joint has been introduced by Charles Bescler, of New York City. The ‘body consists of a tubz of Russian iron of a2in. in diameter, with hinged doors both at side and back. <A well is provided for allowing the jet to be sunk a sufficient distance, and the lens is mounted to the end of a metal cone.
As the centre of gravity lics immediatcly behind the condenser, the lantern is here secured to a single upright, which is attached to a stand. By means of the swivel joint this lantern can be readily turned or tilted as required.
The foregoing remarks and illustrations will give our readcrs an introduction to some shapes of single lanterns with which they have perhaps been previously unacquainted, and on some other occasion we hope to give a few particulars on the styles of bi-unials in use in America,