How does the photographic light make the bright side of the subject slightly darker?

The most common and commonly used is three-point lighting, that is, using three or more different light sources, including "main light", "supplementary light" and "backlight", to create a three-dimensional sense of the subject, while showing the original characteristics of the subject.

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The first key light

Brighten the shoelaces on the right side of the camera, cooperate with the oversized long soft light cover, and then fine-tune the angle to present the brand badge on the shoes. The photometric output of this lamp is the highest among the three light sources, and the luminous angle is equal to the plane of the shoelace part, so as to avoid the excessive shadow inside and outside the shoelace caused by flashing light.

The second Fill Light (fill light)

Highlighting the relief pattern on the left side of the camera near the heel is intended to use the characteristics of highlights to enhance the concave-convex feeling of the relief pattern. Long soft mask is also used to create soft light effect and reduce light ratio. However, the photometric output is relatively weaker than the main light, which increases the three-dimensional sense of vision.

The third backlight (backlight)

The third light source uses a beam tube to focus the light source with the lowest output among the three light sources on the yellow part of the vamp, and at the same time hooks the vamp out of the black background for later use. The use of beam tube can effectively focus the light source on a specific position and create a strong focusing effect, which is a light control weapon for shooting small subjects. This kind of backlight, also known as contour light, outlines the outline of the subject.

Later, the professional photo processing software Capture One was used to calibrate the color temperature, fine-tune the contrast between light and dark, and then the black background was removed in Adobe Photoshop, and an online background was put on. Finally, two layers with different light and dark are used to simulate the lithography of the background.

Of course, the handling of the above false background is limited by the site background. No matter how skilled a photographer or retoucher is in PS technology, the preliminary work is equally important.

Final effect

In addition, it is worth mentioning that we should also pay attention to the characteristics of light, which can be divided into direct light and scattered light, and direct light is conducive to expressing the photographer's outline; Scattered light is conducive to the performance of the photographer's local characteristics, soft; There are also different light sources with different effects, such as positive and negative sides, and you can grasp them yourself.