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Photographic experts know the many differences between the output
of digital and analogue cameras but many amateur photographers
find the terminology very confusing.
In the first of a regular monthly photographic article to be published
in Snapshop Magazine, we're going to unscramble the digital camera
jargon by "breaking the code." We've compiled a glossary of a few of
the terms used when dealing with digital cameras. So here we go....
Short for 'picture element,' these are the individual 'building blocks'
that join together to create an image on a digital still camera.
This is a technical term for digital cameras that can capture high
resolution images of 1 million pixels or more. The greater the number
of megapixels, the higher the resolution and the more defined the
A digital camera's optical zoom is most commonly quoted as "x times
zoom". This describes the lens's ability to multiply the size of a
subject being photographed between its minimum and maximum
Pronounced "jay-peg," the acronym stands for Joint Photographics
It is a colour image compression technique used in digital
photography, which reduces the image file to about 5% of its original
file size, without any significant degradation to the image quality.
Optical Image Stabiliser
Many digital still and video cameras have a built-in Optical Image
Stabiliser function which automatically detects and corrects hand-
held camera shake for beautiful, clear still and moving images.
This is an abbreviation for 'frames per second' - the standard for
measuring the rate of video playback speed. A rate of 30fps is
considered real-time speed and a rate of 24 fps is considered
animation speed. At 12-15 fps, the human eye can detect individual
frames causing the video footage to appear jerky.
LCD (Liquid Crystal Display)
Because of the type of sensor used in a compact digital camera, a live
video feed is what makes it possible to provide the image to be
captured on a LCD screen. It is a very handy tool to have in a camera
because its purpose is multi-functionable. It provides the ability to
review, preview and even act as a large sized viewfinder, giving the
opportunity to take that shot or video footage again with different
settings. Some camera's LCD's can be rotated to different degrees,
enabling shots to be taken at tricky angles.
More photographic hints in the February edition of
Breaking the Digital Photography Code
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> Cathie Stalberg.
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