JPH0580394A - Shooting method - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a photographing method for reproducing the metallic luster of the entire surface of a painting having metallic luster on which gold foil or silver foil is used as a base. [Structure] In addition to the normal photographing light source, an auxiliary light source by a surface light source is applied uniformly from the top, bottom, left, and right of the painting to the entire surface of the painting, and the regular reflection light of the incident light from the surface light source is photographed from the entire surface of the painting. Shoot as you face the camera lens.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing method for reproducing a metallic luster when painting a picture having metallic luster on which gold foil, silver foil or the like is used as a base.

[0002]

2. Description of the Prior Art In order to preserve old paintings for a longer period in the future, it is necessary to avoid open exhibition. On the other hand, however, it is important to give more people the opportunity to see this precious cultural heritage. In order to eliminate this contradiction, it is practiced to take a picture of a painting, make a photographic print from the original plate, make a duplicate by printing, and publicly display this duplicate. Therefore, this copy must be as close as possible to the original painting, but some old precious paintings were painted on metal foil such as gold foil or silver foil (hereinafter referred to as "metallic luster painting"). If you take a picture of this metallic luster painting with the conventional shooting method, the metallic luster part will be darkened or it will be partially shining and the surrounding area will become whitish, and the original painting will lose its originality. There was a problem. That is, when light is applied to a flat surface having a metallic luster, most of the reflected light is “regularly reflected” at an angle equal to the incident angle. Therefore, as shown in FIG. 3A, a metallic luster painting 10 having a metallic luster portion 11 is provided.
In addition, when the light from the light source 12 is applied at an angle close to a right angle, the strong light specularly reflected from the metallic luster part 11 goes to the shooting lens of the camera 13, so if you give the necessary exposure to other diffusely reflected painting parts , The metallic luster is too bright and the surrounding area becomes whitish due to halation. On the other hand, as shown in FIG. 3B, when the position of the light source is set so that the specular reflection of the light applied from the light sources 14 and 14 ′ to the metallic luster portion 11 of the metallic luster painting 10 does not go to the photographing lens (the metallic luster portion 11 is a metal In case gloss painting 10 is not perfectly parallel or flat,
The light sources 14 and 14 'are applied to the metallic luster painting 1 at an angle as shallow as possible), and since the reflected light from the metallic luster portion 11 toward the lens of the camera 14 is extremely small, the metallic luster portion 11 is photographed blackish and the metallic luster is Not reproduced. For this reason, some of the images are taken using FIG. 3B as the main light source and FIG. 3A as the auxiliary light source. For example, the auxiliary light source is applied as a "skylight" from diagonally above, or the auxiliary light source is applied from the left and right sides of the camera. However, when the auxiliary light source is applied from above, the metallic luster of the upper part of the painting can be reproduced, but it cannot be reproduced from the center to the lower part, and even from the left and right, it can only be reproduced partially. In particular, the larger the metal painting, the more partial unevenness.

[0003]

When photographing a three-dimensional metallic luster object, it is better to press the whole specular reflection to some extent and to cause a strong specular reflection partially to obtain a three-dimensional effect and obtain a good result. .. In the case of a flat metallic luster painting, when you look at it directly with your eyes, it looks like a metallic luster only partially depending on the position of the light source at that time, but in the case of duplication, the entire metallic luster is reproduced. Things are important. However, since there are many large metal paintings such as fusuma screens and folding screens, there was a problem that the metallic luster of the entire surface could not be photographed correctly. An object of the present invention is to solve the above-mentioned problems and to provide a photographing method capable of reproducing the characteristic of a metallic luster painting.

[0004]

[Means for Solving the Problems] When photographing a painting having a metallic luster, in addition to a normal photographing light source, an auxiliary light source by a surface light source is applied uniformly from the top, bottom, left, and right of the painting, The problem was solved by the method in which the specularly reflected light of the incident light is photographed from the entire surface of the picture to be photographed toward the lens of the camera.

[0095]

In addition to the normal photographing light source (the light source of FIG. 3B, hereinafter referred to as "main light source"), an auxiliary light source by a surface light source is applied uniformly from the top, bottom, left, and right of the entire surface of the metallic luster painting, and is incident from the surface light source. If the specular reflection of light is directed from the entire surface of the metallic luster painting to the shooting lens, the intensity of the auxiliary light source by the main light source and the surface light source is adjusted so that the metallic luster portion is covered over the entire surface of the painting. You can shoot with a proper lighting.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a cross-sectional explanatory view from the top of a photographing method according to the present invention.
Guess The angle is set as shallow as possible so that the specularly reflected light from the metallic luster portion of the metallic luster painting 1 does not go to the lens of the camera 6. The white reflector 3 serves as a "surface light source" that uniformly applies light from the light sources 5 and 5'to the entire surface of the metallic luster painting 1 from above, below, left and right. The specular reflection light of is directed to the lens of the camera 6 from any part of the metallic luster painting. Therefore, the size of the white reflector 3 is at least twice as large as the vertical and horizontal sizes of the metallic luster painting 1 (four times in area), and
Moreover, although they are installed in parallel, a hole 4 is made in the center of the white reflector 3 and an image is taken from here. The main light sources 2, 2 '
Although only one light source and one light source 5 and 5'are illustrated, a plurality of metal paintings are used when the metal painting to be photographed is large. The light intensity of the surface light source that is applied from the light sources 5 and 5 ′ to the metallic luster painting 1 through the white reflector 3 is usually the same as the intensity of light that is directly applied from the main light sources 2 and 2 ′ to the metallic luster painting 1. 1/5 to 1 /
Adjust to about 20 depending on the reflectance of the metallic luster part and the brightness of the painting part that diffusely reflects. FIG. 2 shows another embodiment, except that the light from the light sources 5 and 5'is made to be a surface light source by the white diffuser plates 7 and 7'and is applied to the entire surface of the metallic luster painting 1 from above, below, left and right without unevenness. This is similar to the case of the embodiment.

[0007]

According to the photographing method of the present invention, the metallic luster portion of the metallic luster painting is not made black or whitish,
Since it is possible to reproduce the metallic luster of the entire painting, it is possible to faithfully reproduce a copy of an old metallic luster painting, which is a valuable cultural heritage.

[Brief description of drawings]

FIG. 1 is a cross-sectional explanatory view from the upper surface of an embodiment of a photographing method of the present invention.

FIG. 2 is a cross-sectional explanatory view from the upper surface of another embodiment.

FIG. 3 is an explanatory diagram of the influence of the angle of the light source when photographing a metallic luster.

Claims (1)

[Claims] 1. When photographing a painting having a metallic luster,
In addition to the normal shooting light source, an auxiliary light source with a surface light source is applied evenly from the top, bottom, left, and right of the painting, and the specularly reflected light of the incident light from the surface light source goes from the entire surface of the painting to the camera lens. A shooting method characterized by shooting in this way.