文档介绍：IMAGE CAPTURE: CAMERAS, LENSES, AND SCANNERS
focal length offers tremendous depth of fi eld, thus permitting one to
get very close to a subject and produce exaggerated size relationships,
unusual perspectives (due to distortion), and an intimate viewing
experience which can be intentionally used to generate visual
interest.
Because most pocket digital cameras have image sensors smaller
than the 35 mm standard (which enhances the telephoto capabilities
of the lens at the expense of reducing wide-angle coverage), an aux-
iliary wide-angle lens attachment is usually required to achieve wide-
angle capabilities.
Telephoto Lens
Telephoto lenses (long focal length) have a narrower picture angle
than a normal lens and make subjects appear larger. Telephoto lenses “I photographed the miniaturized interiors of my sister’s old dollhouses
with an ultra-wide-angle lens to suggest that they may be intimately occupied
have less depth of fi eld at any given aperture than normal or wide-
by the viewer. The scenes are intended to evoke deep unconscious fears and
angle lenses, allowing the subject to be sharp while the foreground desires and explore tensions between childhood innocence and aggression.
and background are out of focus, making the subject clearly stand Gigantisized artifacts, elements, and unseen destructive entities act out against
out. The limited depth of fi eld means that focus is critical. Unlike the unassuming environments. These transgressions reference adult anxieties
that emerge early in life — desires for power and control; fears of natural
wide-angle lenses that stretch space, telephoto press visual
disasters; domestic violence; understanding of our own potential for destruction;
space, making subjects appear closer together than they really are. and the unknowable terrors that threaten to invade the tranquility of our
This can be useful in creating visual interest through unusual perspec- insulated spaces of do