Define Neutral Density

The purpose of a neutral density filter, as used in photography, is to reduce the amount of light that passes through the lens, according to Michigan Technical University. According to the Web site tpub.com, the light intensity is reduced without affecting the color of the light. Reductions to the amount of light passing through the lens allow the use of a larger aperture or a slower shutter speed. This is often used in landscape photography and in bright light situations. The filters are usually referred to as ND filters by photographers.

Neutral density filters are gray in color, according to tpub.com. The filters attach to the front of the lens either by the threaded filter attachment at the front of the lens or some other proprietary method developed by the filter manufacturer. The filters can be used in both color and black and white photography.

Neutral density filters come in a number of densities that reduce the amount of light passing through the lens by between one and six stops. Unfortunately, filter manufacturers use different identifications systems for labeling their filters. Follow manufacturer's instructions for determining the effect neutral density filters will have on the picture.

One of the common uses of a neutral density filter is bright light situations. "Do you need to discover digital photography solutions that bring professional photographers to where they are today? Well, The Top Secret Photography Techniques would assist you out in doing so. To become spectacular photos we initially need to look at some basic photography methods. The initial one I am able to share with you is figure out about light. You can obtain everything concerning photography techniques on , The Top Secret Photography Techniques. Anytime you uncover about light and in what method it interacts with the direct environment then your images will get superior..". If the sunlight or light reflected off snow or water is too bright for a proper exposure, a ND filter will reduce the light reaching the film or sensor. Other uses include reducing the aperture to limit the depth of field and slowing shutter speeds to allow the blurring of motion.

Neutral density filters are uniform throughout the filter. A graduated neutral density filter has more light reduction in parts of the filter than others. The filters come in a number of blends and allow some special effects, such as vignetting.

ND filters are useful in limited situations, according to the web site cambridgeincolour.com. The filters can reduce shutter speeds unnecessarily or require increases to the ISO that may result in more grain in the photograph. In addition some filters can produce a color shift in the picture.

Neutral Density Filters - Michigan Technological University
www.cs.mtu.edu/shene/DigiCam/User-Guide/filter/filter-ND.html
Neutral Density Filters The main purpose of using neutral density (i.e., ND) filters is to reduce the amount of light that can pass through the lens.
Using Graduated Neutral Density Filters - Cambridge in Colour ...
www.cambridgeincolour.com/tutorials/graduated-neutral-density...
GRADUATED NEUTRAL DENSITY FILTERS. Graduated neutral density (GND) or "grad" filters are an essential tool for capturing scenes with a broad dynamic range.
Graduated neutral density filter - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Graduated_neutral_density_filter
A graduated neutral-density filter, also known as a graduated ND filter, split neutral-density filter, or just a graduated filter, is an optical filter that has a ...
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oceanworld.tamu.edu/resources/ocng_textbook/chapter06/chapter06_01.htm
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Neutral Define Neutral at Dictionary.com
dictionary.reference.com/browse/neutral
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www.thefreedictionary.com/neutral
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medical-dictionary.thefreedictionary.com/neutral+thermal+environment
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Neutral density filter - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Neutral_density_filter
In photography and optics, a neutral density filter or ND filter is a filter that reduces or modifies intensity of all wavelengths or colors of light equally, giving ...
Hitech Neutral Density Master Kit Review - Photography Life
photographylife.com Reviews
This is a review of the Hitech Neutral Density Master Kit, which contains a number of filters that I use with the Hitech Filter Holder for landscape photog by Nasim ...