Digital
cameras are a camera with the principle of takes video or motionless
photographs, or both, digitally by recording images via an electronic
representation sensor.
The diaphragm in addition to shutter admit
the correct amount of light in the direction of the imager, just as in the
midst of film but the image pickup device is electronic rather than chemical.
Most digital cameras, apart on or after camera phones in addition to a few
specialized types, have a standard tripod screw. Digital cameras are
incorporated in the direction of many devices ranging on or after PDAs in
addition to mobile phones. When digital cameras became common, a question many
photographers asked was whether their film cameras could be converted in the
direction of digital. The answer was yes in addition to no. For the majority of
35 mm film cameras the answer is no, the reworking in addition to cost would be
too great, especially as lenses have been evolving as well as cameras. For most
a conversion in the direction of digital, in the direction of give enough space
for the electronics in addition to allow a liquid crystal display in the
direction of preview, would require removing the back of the camera in addition
to replacing it in the midst of a custom built digital unit. digital cameras are
made in a wide range of sizes, prices in addition to capabilities. The majority
are camera phones, operated as a mobile application through the cellphone menu.
Professional photographers in addition to many amateurs use larger, more
expensive digital single lens reflex cameras (DSLR) for their greater
versatility. Between these extremes lie digital compact cameras in addition to
bridge digital cameras with the purpose of bridge the gap between amateur in
addition to professional cameras. Specialized cameras including multispectral
imaging equipment in addition to astrographs continue in the direction of serve
the scientific, military, medical in addition to other special purposes for
which digital photography was invented.
Compact digital cameras are usually
designed in the direction of be easy in the direction of use, sacrificing
advanced features in addition to picture quality for compactness in addition to
simplicity, images can usually only be stored using less compression (JPEG).
Most have a built in flash usually of low power, sufficient for nearby
subjects. Live preview is almost always used in the direction of frame the
photo. Most have limited motion picture capability. Compacts often have macro
capability in addition to zoom lenses but the zoom range is usually less than
for bridge in addition to DSLR cameras. Generally a contrast detects autofocus
system, using the image data on or after the live preview feed of the main
imager, focuses the lens. Bridge are higher end digital cameras
with the purpose of physically in addition to ergonomically resemble DSLRs in
addition to share in the midst of them some advanced features, but share in the
midst of compacts the use of a fixed lens in addition to a small sensor. Like
compacts, most use live preview in the direction of frame the image. Their
autofocus uses the same contrast detect mechanism, but many bridge cameras have
a manual focus mode, in some cases using a separate focus ring, for greater
control. They originally bridged the gap between affordable points in addition
to shoot cameras in addition to the then unaffordable earlier digital SLRs.
Many devices include digital cameras built in the direction of or integrated in
the direction of them. For example, mobile phones often include digital
cameras, plus other small electronic devices such as PDAs, laptops in addition
to BlackBerry devices often contain an integral digital camera, in addition to
most 21st century camcorders can also make still pictures. Integrated cameras
tend in the direction of be at the very lowest end of the scale of digital
cameras in technical specifications, such as resolution, optical quality, in
addition to ability in the direction of use accessories. In the midst of rapid
development, however, the gap between mainstream compact digital cameras in
addition to camera phones is closing; in addition to high end camera phones are
competitive in the midst of low end digital cameras of the same generation.
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