ND Filters
ND Filters
ND mirror: also called medium gray density mirror, neutral grayscale mirror or simply grayscale mirror, ND mirror, its role is mainly to reduce the amount of light into the camera, the basic role of ND light reduction lens: when using the minimum aperture and the fastest shutter, but also overexposure, by adding ND mirror in front of the lens to reduce the exposure value (reduce the amount of light into the lens). In addition this to a variety of different wavelengths of color light (light) of the ability to reduce resistance is equal and uniform; to be seeded filter its characteristics: the color of the photographic object will not have any effect, so you can truly reproduce the scene color contrast and brightness difference.
The main purpose of using ND lens is to prevent overexposure in shooting. Suitable for daytime or too bright environment, using a large aperture and low shutter speed to create special effects. 1, when shooting with a slower shutter speed to record the movement of the subject; 2, when shooting with a large aperture, will reduce the depth of field in order to separate the subject from the background. For example, if you need to shoot water with a slow shutter speed, so that it shows a soft, wispy special effect, then you need to use ND scrims.
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