Samsung HMX-F80SP Benutzerhandbuch

Seite von 108
103
Maintenance & additional information
GLOSSARY
AF (Auto Focus)
A system that automatically focuses the camcorder lens on the subject. Your 
camcorder uses the contrast to focus automatically.
Aperture
The aperture controls the amount of light that reaches the camcorder’s sensor.
Camcorder shake (Blur)
If the camcorder is moved while the shutter is open, the entire image may appear 
blurred. This occurs more often when the shutter speed is slow. Prevent camcorder 
shake by raising the sensitivity, using a faster shutter speed. Alternately, use a tripod, 
the DIS or OIS function to stabilise the camcorder.
Composition
Composition in photography means arranging objects in a photo. Usually, abiding by 
the rule of thirds leads to a good composition.
Complementary Metal-Oxide-Semiconductor (CMOS)
CMOS is an image sensor producing images approaching the quality of CCD 
(charge coupled device) sensors. It consumes less power, meaning a longer battery 
life on your camcorder.
Digital zoom
A feature that artificially increases the amount of zoom available with zoom lens 
(Optical zoom). When using the Digital zoom, the image quality will deteriorate as the 
magnification increases.
Effective Pixel Count
Unlike the total pixel count, this is the actual number of pixels used to capture an 
image.
EV (Exposure Value)
All the combinations of the camcorder’s shutter speed and lens aperture that result 
in the same exposure.
Exposure
The amount of light allowed to reach the camcorder’s sensor. Exposure is controlled 
by a combination of the shutter speed, the aperture value, and ISO sensitivity.
Focal length (f)
The distance from the middle of the lens to its focal point (in millimeters). Longer focal 
lengths result in narrower angles of view and the subject is magnified. Shorter focal 
lengths result in wider angles of view.
F. No (F-Number)
The F-number defines the brightness of lens. Smaller number lens has generally 
brighter image. The F-number is directly proportional to the focal length and inversely 
proportional to the lens diameter.
*F.No=focal length/diameter of lens aperture
MPEG-4 AVC/H.264
MPEG-4 AVC/H.264 defines the latest video coding format standardised by the 
ISOIEC and the ITU-T, in 2003. Compared with the conventional MPEG-2 format, 
MPEG-4 AVC/H.264 has more than twice the efficiency. Your camcorder employs 
MPEG-4 AVC/H.264 to encode high definition videos.
Optical zoom
This is a general zoom which can enlarge images with a lens and does not 
deteriorate quality of images.
Quality
An expression of the rate of compression used in a digital image. Higher quality 
images have a lower rate of compression, which usually results in a larger file size.
Resolution
The number of pixels present in a digital image. High resolution images contain more 
pixels and typically show more detail than low resolution images.
Shutter speed
Shutter speed refers to the amount of time it takes to open and close the shutter, 
and it is an important factor in the brightness of a photo, as it controls the amount 
of light which pass through the aperture before it reaches the image sensor. A fast 
shutter speed allows less time to let light in and the photo becomes darker and more 
easily
 
freezes subjects in motion.
White balance (colour balance)
An adjustment of the intensities of colours (typically the primary colours red, green, 
and blue), in an image. The goal of adjusting the white balance, or colour balance, is 
to correctly render the colours in an image.