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A filter that theoretically reduces the transmission of all colors of the visible spectrum. Therefore, it is "neutral" and does not discriminate. There are 3 types that I know of: plain, graduated (density varies across the filter) and filter wheel. They come in various strengths, reducing light transmission by one stop for each factor of 2. Therefore an ND8 filter will require a corresponding increase in exposure of 3 stops (2x2x2=8). They are usually used when the light is too strong to achieve the desired picture, or in cases where the lens type dictates that exposure be controlled by filtration instead of a physical aperture. NOTE: I used the word theoretically. Practical ND filters do not reduce all visible wavelengths 100% equally, and they MUST NOT BE USED AS EYE PROTECTION from the sun as they have little effect on ultra-violet radiation.
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∙ 15y ago
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What is an ND filter used for?
An ND filter is and abbreviation for a Neutral density filter. An ND filter is used by photographers to change the aperture, exposure time and motion blur of a subject or landscape.
How do you get the clouds to appear in your landscape photography without your foreground seeming underexposed?
Use a Graduated Neutral Density Filter.
What is the full form of GND?
1) Ground 2) Girl Next Door 3) Graduated neutral density filter
Gradient filter in photography?
A type of filter where the effect goes from least to most across the surface of the filter. The assumption is that one portion of the scene deserves more of the modifying effect than the other. Most of the time, this applies to a neutral density filter.
What actors and actresses appeared in A Neutral Density - 2005?
The cast of A Neutral Density - 2005 includes: Lynn Crecelius as Timothy
What are the release dates for A Neutral Density - 2005?
A Neutral Density - 2005 was released on: USA: 19 September 2005 (Cinematexas Film Festival)
What is meant by light neutral in a refinery?
"Light" refers to the density. "Lighter" materials have a lower density. "Neutral" refers to the acidity which is measured using the total acid number (TAN).
In order for an object to have neutral buoyancy what would the relationship between the density of the object and the density of the fluid have to be?
They have to be the same.
What is another word to describe an object with neutral buoyancy?
It is average density.
What do ND and E4 stand for?
ND: Neutral Density E4: Echelon 4
How do you find the density of smoke?
The smoke from a given volume of air is collected on a preweighed paper filter; density is mass/volume.
What is neutral density filter?
Provides high quality optical glass Regis's life I am to them. Pictures detail hundred super bright sunlight such as a beach setting it also enables subjects to stand out from backgrounds and create slow motion picture effects. "ND"
