In order to sell furniture satisfactorily, it is obviously desirable that the customers should see the articles themselves. But when the customer lives far from the factory, it is often impossible, or highly inconvenient, either for him to visit the show-rooms, or for the furniture to be taken to him.

It is in these circumstances that the aid of photography is invaluable, though only when it is properly done. Poor photographs may be worse than useless as giving an entirely wrong impression of the beauty and value of the articles. Until quite recently it was not possible to give anything but an indifferent representation of objects having rich colorings, but the introduction of the Wratten Panchromatic plate, some few years ago, has remedied this, and with this plate, which is sensitive to all colors, it is possible to obtain exact representations of articles formerly impossible to photograph with good results.

The Importance Of Good Photographs

A piece of furniture is usually more or less valuable according to the wood from which it is manufactured, and the way in which this wood is displayed, for example, by fine inlay work or richly figured veneering. It is therefore important to have photographs which show the quality of the wood and the workmanship clearly and accurately, so that the buyer may as easily judge the character of the furniture as though he actually had the article itself in front of him. Now this cannot be done by photography in the usual way, as a rule, because the furniture is reflecting light of different color from that to which the photographic plate is sensitive. Ordinary plates are only sensitive to blue, violet and ultra-violet rays, and insensitive to green, yellow and red. The result is that a photograph on an ordinary plate is only a record of the blue, violet and ultra-violet reflected from the object photographed.

As is well known, white light consists of a mixture of all colors; when it falls upon an object certain of these colors are absorbed, the remainder are reflected back and these mixed together give the characteristic color of the object. If we analyze white light in a spectroscope, we obtain a band of pure colors as follows: Violet, Blue, Green, Yellow, Orange and Red, and if we photograph this band on an ordinary plate we shall get a record only of the violet and blue and also of some of the ultra-violet rays which are quite invisible to the eye. The Panchromatic plate, on the other hand, would give us a record of all the colors in the band, though not in quite the same relative brightnesses as the eye sees them.

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Mahogany Box, Inlaid. Made with an Ordinary Plate

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Made with Wratten Panchromatic Plate and Red "A" Filter (To be continued.)

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By Theo. Ragu St. Louis, Mo.

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By Theo. Ragu St. Louis, Mo.