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Focus On Lighting Photos Focus on the Fundamentals.pdf

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Glossary<br />

this is an introductory book,<br />

but a few terms here go a<br />

little bey<strong>on</strong>d an introductory<br />

explanati<strong>on</strong>. Some readers<br />

will be eager for <strong>the</strong> extra<br />

detail, whereas o<strong>the</strong>rs will not<br />

yet want that detail, and <strong>the</strong>y<br />

are welcome to skip what <strong>the</strong>y<br />

d<strong>on</strong>’t need. Just remember<br />

that it’s here when you need it.<br />

Angle Ir<strong>on</strong>: Cheap bracket,<br />

often used for mounting shelves<br />

in storage areas. A flat metal<br />

rod bent to a 90-degree angle.<br />

Available in a variety of sizes.<br />

Reflectors can be leaned against<br />

angle ir<strong>on</strong>s, though it is more<br />

secure to use a spring clamp to<br />

prevent <strong>the</strong> reflector from slipping<br />

or falling over. Find it in any<br />

hardware store.<br />

Aperture: Simple answer: how<br />

open <strong>the</strong> lens diaphragm is.<br />

The more open, <strong>the</strong> more light<br />

that passes through <strong>the</strong> lens<br />

and <strong>the</strong> greater <strong>the</strong> exposure.<br />

Measured in f-stops. That’s all a<br />

novice really needs to know, but<br />

some will want more right now.<br />

184 Glossary<br />

Technical answer: <strong>the</strong> focal length<br />

of <strong>the</strong> lens divided by <strong>the</strong> effective<br />

diameter. That’s why a 100 mm<br />

lens set at, say, f/8 has a much<br />

bigger physical opening than<br />

a 25 mm lens set to <strong>the</strong> same<br />

aperture, even though <strong>the</strong>y both<br />

admit <strong>the</strong> same amount of light.<br />

Aperture doesn’t just c<strong>on</strong>trol <strong>the</strong><br />

amount of light; it is also <strong>on</strong>e of<br />

<strong>the</strong> two factors that c<strong>on</strong>trol depth<br />

of field.<br />

Background Light: A light used<br />

to brighten a background, often<br />

in c<strong>on</strong>juncti<strong>on</strong> with barn doors or<br />

a snoot to c<strong>on</strong>trol <strong>the</strong> width of <strong>the</strong><br />

beam.<br />

Baffle: An additi<strong>on</strong>al sheet of<br />

diffusi<strong>on</strong> inside a softbox. Usually<br />

removable, if less diffusi<strong>on</strong> is<br />

needed.<br />

Bar Clamp: An F-shaped<br />

clamp, similar to a C-clamp,<br />

but generally larger. A threaded<br />

screw is at <strong>the</strong> bottom and can<br />

be tightened to hold an item in<br />

place. Found in hardware stores.<br />

Barn Door: A tool used to<br />

block light; attaches directly to<br />

<strong>the</strong> light. Commercially made<br />

models generally have four<br />

doors, which can independently<br />

be opened as much or little<br />

as <strong>the</strong> photographer desires.<br />

Homemade versi<strong>on</strong>s will have a<br />

black board attached as needed.<br />

Beauty <str<strong>on</strong>g>Lighting</str<strong>on</strong>g>: Intended to<br />

minimize skin texture, it is flat<br />

lighting that uses a diffused light<br />

above <strong>the</strong> camera and usually<br />

a reflector, sometimes a sec<strong>on</strong>d<br />

diffused light source, beneath <strong>the</strong><br />

camera. Most effectively used for<br />

head-and-shoulder portraits.<br />

Blue Glue: Originally designed<br />

to seal refrigerator gaskets, it<br />

has been since marketed under<br />

many brand names as a way for<br />

parents to temporarily put up <strong>the</strong>ir<br />

children’s art without damaging<br />

<strong>the</strong> wall. In photography, it is<br />

used to hold lightweight items in<br />

place without worry of damage<br />

when removed. The term is<br />

photographers’ slang, so you<br />

may have to show store clerks<br />

<strong>the</strong> picture in this book to find it.<br />

Found in hardware, school supply,<br />

and art supply stores.

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