Basic Photography Course

process, such as the optical system, the emulsion, or

a developer.

FAST FILM

致hotographic material of relatively high

sensitivity to light, having a high-exposure index.
(PIA)

FIELD

范canning lines in one half of one video or

television frame. There are two fields (one odd, one
even) in a frame. One field equals 262.5 scanning
lines that create a total of 525 standard television
lines or one frame. Also known as the NTSC signal
(U.S. T.V. system).

FILM, COLORBLIND

胚ilm which is sensitive only

to light of very short wavelengths (ultraviolet,
violet, and blue). (NMA)

FILM, PHOTOGRAPHIC, INFRARED

胚ilm

coated with an emulsion especially sensitive to
infrared light.

FILM, PHOTOGRAPHIC, ORTHOCHROMATIC

(ORTHO)

耍 black-and-white film coated with an

emulsion that is sensitive to ultraviolet, violet, blue,
and green radiation. Not being sensitive to red, red
objects photographed with orthochromatic films are
rendered dark on the print.

FILM, PHOTOGRAPHIC, PANCHROMATIC

(PAN)

耍 black-and-white film coated with an

emulsion that is sensitive to ultraviolet, violet, blue,
green, and red radiation. The special sensitivity of
panchromatic films approach that of the human eye.

AI-7

FILM, PHOTOGRAPHIC, REVERSAL

耍 film

which after exposure is processed to produce a
positive image instead of the customary negative
image. Reversal films may be black and white or
color.

FILTER

致hotographic. A layer of glass, gelatin, or

other material used to modify the transmitted light

selectively.

FILTER, NEUTRAL DENSITY

胝ne not selective for

a certain portion of the spectrum but absorbing all
colors equally, thus reducing the intensity of light
without changing its chromaticity.

FILTER FACTOR

茅he number of times exposure

must be increased to compensate for light absorbed
by a filter.

FIXED FOCUS

茅he term applied to optical

instruments and photographic equipment that are
not provided with a means for focusing.

FIXER

耍 solution used to remove undeveloped silver

halides from photosensitized emulsions. The fixer
usually contains sodium or ammonium thiosulfate,

a hardening agent, and an acid or acid salt.

FIXING AGENT

耍 photographic chemical that

dissolves the silver halides not used for producing
an image to preserve the photograph from further
photographic effect upon subsequent exposure to
light. Common fixing agents are sodium thiosulfate
and ammonium thiosulfate.

FLARE

耍 defect of optical systems in which scattered

light resulting from reflections at optical surfaces,
the walls of the camera, or imperfections in the
optical parts, reaches the image plane and produces
an overall fog or flare spot that damages the
photographic quality of the resulting record.

FLASH, ELECTRONIC

耍 high-voltage light source

for photographic illumination, producing a
momentary flash of light of high intensity in an
atmosphere of gas enclosed in a tube that can be
used repeatedly. (PIA)

FLAT

耍n image is said to be "flat" if its contrast is too

low. Flatness is a defect that does not necessarily

affect the entire density scale of a reproduction to
the same degree. Thus a picture may be "flat" in the
highlight areas or "flat" in the shadow regions, or
both.

FLOATING LID

耍 lid designed to float on the top of

a photographic processing solution to reduce aerial

oxidation.

FLOODLIGHT

耍 photographic light used to produce

even lighting on large subjects. A floodlight spreads
light evenly over a wide angle, as distinguished
from a spotlight that concentrates light in a beam.

FLUID OUNCE

耍 unit of capacity in the Liquid

Measure System equal to 1.8 cubic inches; it is equal
to 29.57 milliliters.

FOCAL PLANE

茅he surface (plane) on which an axial

image transmitted by a lens is brought to sharpest

focus; the surface occupied by the light-sensitive
film or plate in the camera.

FOCAL POINT

茅he point at which converging rays

of light from a lens meet.

FOCUS

�(l) The point at which rays of light passing

through different parts of a lens converge to form a
sharp image of the original. (2) (Verb) To adjust the
position of either the lens or focusing screen in a

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Basic Photography Course

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DOFMaster for Windows On-line Depth of Field Calculator DOFMaster for Mobile Devices On-line Depth of Field Table Hyperfocal Distance Chart Articles FAQ Recommended Books Support Contact Links Home As an Amazon Associate I earn from qualifying purchases.	contents <- previous page next page -> process, such as the optical system, the emulsion, or a developer. FAST FILM 致hotographic material of relatively high sensitivity to light, having a high-exposure index. (PIA) FIELD 范canning lines in one half of one video or television frame. There are two fields (one odd, one even) in a frame. One field equals 262.5 scanning lines that create a total of 525 standard television lines or one frame. Also known as the NTSC signal (U.S. T.V. system). FILM, COLORBLIND 胚ilm which is sensitive only to light of very short wavelengths (ultraviolet, violet, and blue). (NMA) FILM, PHOTOGRAPHIC, INFRARED 胚ilm coated with an emulsion especially sensitive to infrared light. FILM, PHOTOGRAPHIC, ORTHOCHROMATIC (ORTHO) 耍 black-and-white film coated with an emulsion that is sensitive to ultraviolet, violet, blue, and green radiation. Not being sensitive to red, red objects photographed with orthochromatic films are rendered dark on the print. FILM, PHOTOGRAPHIC, PANCHROMATIC (PAN) 耍 black-and-white film coated with an emulsion that is sensitive to ultraviolet, violet, blue, green, and red radiation. The special sensitivity of panchromatic films approach that of the human eye. AI-7 FILM, PHOTOGRAPHIC, REVERSAL 耍 film which after exposure is processed to produce a positive image instead of the customary negative image. Reversal films may be black and white or color. FILTER 致hotographic. A layer of glass, gelatin, or other material used to modify the transmitted light selectively. FILTER, NEUTRAL DENSITY 胝ne not selective for a certain portion of the spectrum but absorbing all colors equally, thus reducing the intensity of light without changing its chromaticity. FILTER FACTOR 茅he number of times exposure must be increased to compensate for light absorbed by a filter. FIXED FOCUS 茅he term applied to optical instruments and photographic equipment that are not provided with a means for focusing. FIXER 耍 solution used to remove undeveloped silver halides from photosensitized emulsions. The fixer usually contains sodium or ammonium thiosulfate, a hardening agent, and an acid or acid salt. FIXING AGENT 耍 photographic chemical that dissolves the silver halides not used for producing an image to preserve the photograph from further photographic effect upon subsequent exposure to light. Common fixing agents are sodium thiosulfate and ammonium thiosulfate. FLARE 耍 defect of optical systems in which scattered light resulting from reflections at optical surfaces, the walls of the camera, or imperfections in the optical parts, reaches the image plane and produces an overall fog or flare spot that damages the photographic quality of the resulting record. FLASH, ELECTRONIC 耍 high-voltage light source for photographic illumination, producing a momentary flash of light of high intensity in an atmosphere of gas enclosed in a tube that can be used repeatedly. (PIA) FLAT 耍n image is said to be "flat" if its contrast is too low. Flatness is a defect that does not necessarily affect the entire density scale of a reproduction to the same degree. Thus a picture may be "flat" in the highlight areas or "flat" in the shadow regions, or both. FLOATING LID 耍 lid designed to float on the top of a photographic processing solution to reduce aerial oxidation. FLOODLIGHT 耍 photographic light used to produce even lighting on large subjects. A floodlight spreads light evenly over a wide angle, as distinguished from a spotlight that concentrates light in a beam. FLUID OUNCE 耍 unit of capacity in the Liquid Measure System equal to 1.8 cubic inches; it is equal to 29.57 milliliters. FOCAL PLANE 茅he surface (plane) on which an axial image transmitted by a lens is brought to sharpest focus; the surface occupied by the light-sensitive film or plate in the camera. FOCAL POINT 茅he point at which converging rays of light from a lens meet. FOCUS �(l) The point at which rays of light passing through different parts of a lens converge to form a sharp image of the original. (2) (Verb) To adjust the position of either the lens or focusing screen in a contents Basic Photography Course <- previous page next page ->	As an Amazon Associate I earn from qualifying purchases.
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