Wednesday, July 21, 2010

Various kinds ofDigital Camera Review Test Image styles


Digital Camera Reviews




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Compact digital cameras

http://upload.wikimedia.org/wikipedia/commons/a/ae/Sony_DSC-W170.jpg


Subcompact with lens assembly retracted




Compact cameras are designed to be small and portable and are particularly suitable for casual
and "snapshot" use, thus are also called point-and-shoot camera. The smallest, generally less than 20 mm thick,
are described as subcompacts or "ultra-compacts".
Most, apart from ruggedized or water-resistant models, incorporate a retractable lens assembly allowing a thin camera to have a moderately long focal length and thus fully exploit an image sensor larger than that on a camera phone, and a mechanized lens cap to cover the lens when retracted.

Compact cameras are usually designed to be easy to use, sacrificing advanced features and picture
quality for compactness and simplicity; images can usually only be stored using lossy compression (JPEG).
Most have a built-in flash usually of low power, sufficient for nearby subjects.
Live preview is almost always used to frame the photo. They may have limited motion picture capability.
Compacts often have macro capability and zoom lenses but the zoom range is usually less than for bridge and DSLR cameras.
Generally a contrast-detect autofocus system, using the image data from the live preview feed off the main imager, focuses the lens.

Typically, these cameras incorporate a nearly-silent leaf shutter into their lenses.

To enable lower costs and smaller size,
these cameras typically use image sensors with a diagonal of approximately 6 mm,
corresponding to a crop factor around 6. This gives them weaker low-light performance, greater depth of field,
generally closer focusing ability, and smaller components than cameras using larger sensors.
Samsung has launched 14.
2MP versions of its dual LCD compact cameras in the shape of the ST600 and ST100.
Both feature larger 3.5" rear LCDs and slightly bigger 1.8" front LCDs compared their DualView predecessors (known as 2View in Europe).
The ST600 comes with a 5x image stabilized zoom starting at a useful 27mm equivalent, while the ST100 comes with a 35-175mm equiv. lens.
The ST100 is a departure for the DualView series, being a card-style camera built around a periscope lens.
Both cameras are designed around touch-screen interfaces. The ST600 and ST100 will be available from September at a retail price of $329.99
and $349.99 respectively.
Ciné camera

http://upload.wikimedia.org/wikipedia/commons/4/41/Voigtlaender_Brillant.jpg


Main article: Movie camera

A ciné camera or movie camera takes a rapid sequence of photographs on strips of film.
In contrast to a still camera, which captures a single snapshot at a time, the ciné camera takes a series of images,
each called a "frame" through the use of an intermittent mechanism.
The frames are later played back in a ciné projector at a specific speed, called the "frame rate" (number of frames per second). While viewing,
a person's eyes and brain merge the separate pictures to create the illusion of motion. The first ciné camera was built around 1888 and by 1890 several types were being manufactured. The standard film size for ciné cameras was quickly established as 35mm film and this remains in use to this day. Other professional standard formats include 70 mm film and 16mm film whilst amateurs film makers used 9.5 mm film, 8mm film or Standard 8 and Super 8 before the move into digital format

http://upload.wikimedia.org/wikipedia/commons/3/35/S9000.jpg

.
ciné cameras

http://upload.wikimedia.org/wikipedia/commons/3/39/Retina-IIIC-600.jpg


The size and complexity of ciné cameras varies greatly depending on the uses required of the camera.
Some professional equipment is very large and too heavy to be hand held whilst some amateur cameras were designed to be very small and light for
single-handed operation. In the last quarter of the 20th century camcorders supplanted film motion cameras for amateurs.
Professional video cameras did the same for professional users around the turn of the century.
[edit] Image gallery
Ciné camera
Main article: Movie camera

A ciné camera or movie camera takes a rapid sequence of photographs on strips of film.
In contrast to a still camera, which captures a single snapshot at a time, the ciné camera takes a series of images, each called a
"frame" through the use of an intermittent mechanism. The frames are later played back in a ciné projector at a specific speed,
called the "frame rate" (number of frames per second). While viewing, a person's eyes and brain merge the separate pictures to
create the illusion of motion. The first ciné camera was built around 1888 and by 1890 several types were being manufactured.
The standard film size for ciné cameras was quickly established as 35mm film and this remains in use to this day. Other professional s
tandard formats include 70 mm film and 16mm film whilst amateurs film makers used 9.5 mm film, 8mm film or Standard 8 and Super 8
before the move into digital format.

The size and complexity of ciné cameras varies greatly depending on the uses required of the camera.
Some professional equipment is very large and too heavy to be hand held whilst some amateur cameras were designed to be very small
and light for single-handed operation. In the last quarter of the 20th century camcorders supplanted film motion cameras for amateurs.
Professional video cameras did the same for professional users around the turn of the century.
[edit] Image gallery

1 comment:

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