photographic filter

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photographic filter

A layer of glass, gelatine, or other material used to modify the spectrum of the incidental light.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
References in periodicals archive ?
The drop-in filter mount adapter offers the ability to use a range of drop-in filters (drop-in circular polarizing filter or drop-in variable ND filter).
Nacho Gayan, one of advertising's go-to directors, perfectly interpreted, through images, music and basically no dialogue, the adventure that led young Edwin Land to invent the polarizing filter, which today allows us to enjoy an instant visual experience and see the world around us with glare-free clarity.
Better yet, get a variable polarizing filter. An indispensable tool for observing Venus (or the Moon), this device consists of a pair of identical polarizing filters in a rotating ring mount.
The two groups of four edges could easily be differentiated using a polarizing filter, giving the four sets of readings that are shown in Table I (which also gives the results from other visually similar green tourmalines that were studied for comparison).
Despite the notion that social media creates a polarizing filter bubble," some 70 per cent of millennials said their social media feeds are comprised of diverse viewpoints and evenly mixed between those who agree and disagree with them.
25 -- Researchers from the university of Utah have developed a new polarizing filter, which allows more light in.
I was pleasantly surprised to see the accessories included--mounting rings, lens cover, tube extension, hex wrench, polarizing filter, and even the 3v Lithium battery.
Experienced photographers know that attaching a polarizing filter to a regular lens cuts out glare, accentuates certain features in regular shots, and, in cases like shooting objects in water, can show the subjects standing out in sharp contrast to their surroundings.
Among the artifacts to be auctioned include the sight ring, a small polarizing filter put on a camera which was used by astronaut James Irwin on Apollo 15.