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Whip pan. See Swish pan.
White Balance. e overall adjustment of the
relative intensities of the additive primaries (red,
green, and blue) with the goal of rendering colors
(especially neutral colors and skin tones) correctly.
White balance changes the overall mixture of colors
in an image. Our eyes and brain are very good at
determining what is white under different lighting
conditions, however, video cameras are not, even with
auto white balance (AWB) set. Incorrect white
balance usually leads to excessively blue images
outdoors or excessively orange or green images
indoor. Video cameras are usually white balanced by
pointing the camera to a white surface under the
current illumination and "setting" the white balance.
Cameras also have presets for daylight (5500K) or
tungsten (3200K) color temperatures. See also color
temperature.
Wide-angle lens. A short focal length lens that
enables the camera to photograph a wider area than a
normal lens. For 35mm lms a wide-angle lens is
30mm or less. Also called a short lens.
XDCAM HD. A high de nition video format based
on MPEG-2 used by Sony for storage of video on
some of their cameras, a higher-quality alternative to
the tape-based HDV format.
XLR. One of several sound connectors having three or
more conductors plus an outer shell which shields the
connectors and locks the connectors into place.
Found on professional audio gear and some prosumer
cameras.
Zebra (a.k.a. Zebra Stripes) is a feature found on
many video cameras used to determine exposure
levels. Diagonal lines appear in the view nder or
LCD display over any areas that are over-exposure.
Better cameras allow you to choose between different
zebra settings, typically 75%, 95%, or over 100%.
ese refer to the IRE video levels where 100 IRE
corresponds to pure white, 75 IRE is a very bright
area of the frame with textural detail, and 50 IRE is
around middle gray (or 18% grey in still photography
terms).
Zoom shot. A shot made with a zoom lens, which
makes the image appear closer (zoom in) or farther
away (zoom out) by varying the focal length of the
lens. Offers a very different quality than a tracking
shot. See Tracking Shot.
Zip pan. See Swish pan.
Introduction to the Panasonic AG-HMC150 AVCHD camcorder (rough draft)
Et cetera
Copyright
© 2012 by David Tamés, Some rights reserved.
Released under the terms of a Creative Commons
Attribution-Noncommercial-Share Alike 3.0 License,
creativecommons.org/licenses/by-nc-sa/3.0/us/
Any references or derivative works should refer to this
document as: "Introduction to the Panasonic AG-
HMC150 AVCHD camcorder" by David Tamés,
available at
http://kino-eye.com/dvb/
Acknowledgments
Portions of this document are based, in part, on
"Introduction to Digital Camcorder" by Suburban
Community Channels, White Bear Lake, MN,
www.scctv.org. Some materials have been derived
from notes and sources too numerous to properly
document. A special thanks go out to everyone who
has so generously shared their knowledge on the web.
3:2 Pulldown and 24PA illustrations courtesy of
Adam Wilt, www.adamwilt.com/24p/. e glossary
contains some information from a range of sources
including Wikipedia. Line drawings courtesy of
Panasonic, who retains their copyright on these
images. Any images not credited belong to the author
or the respective manufacturers of the products
depicted (for which they may retain copyright) and
are used under copyright guidelines for fair use in an
educational context.
Trademarks
Any trademarks mentioned in this document belong
to their respective owners.
Disclaimer
Mention of products, vendors, books, web sites, or
techniques does not constitute an endorsement. is
document is provided as-is and without a warranty of
any kind, expressed or implied.
http://kino-eye.com/dvb/
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