Related Words

Sky Filter: Outdated term for a filter which has a graduated density across its surface.

Polarizing Filter: Colorless gray filter made from stressed glass. Polarizing filters are used over light sources or camera lenses to reduce or remove specular reflection from certain types of surfaces.

Panchromatic Vision Filter: Filter through which the subject can be viewed approximately as it would appear in monochrome as recorded by a panchromatic emulsion.

Portafilter: In espresso brewing , a metal object with plastic handle that holds the coffee filter, and clamps onto the group.

Risky Asset: An asset whose future return is uncertain.

Sky: The vault-like apparent surface against which all aerial objects are seen from the earth.

Scotch Whisky: Blends are a mixture of about 40 per cent malt and 60 per cent grain whisky and are most suitable tor cocktails -single malts should be drunk neat or diluted with water

Oil Filter: An Oil Filter filters the oil in the engine. Changing the oil and oil filter is one task that many riders do for themselves. Consult your owner's manual for recommended intervals and oil wei . . . View Full Definition

Notch Filter: A special type of cut-only equalizer used to attenuate ( no boosting ) a narrow band of frequencies. Three controls: frequency, bandwidth and depth, determine the notch. Simplified units pro . . . View Full Definition

Low Pass Filter: A network of components which attenuate all frequencies above a predetermined frequency selected by the designer. Frequencies below cut-off are passed without any effect.