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.