By Robert L Hartwig
Uncomplicated television know-how is the fundamental easy consultant to the basics underlying all tv and video structures, written for college kids and nontechnical execs. you don't want to have a math or technology history so as to comprehend this rationalization of ways the central items of kit paintings, what their services are, and the way they're built-in to shape a fancy video approach. An realizing of this fabric should be useful so that you can reach the true global, the place one individual frequently has to accomplish many various roles and services inside a construction. Armed with a few simple technical historical past info, you can be more advantageous at understanding new functions and at problem-solving. The fourth version of easy television expertise has been up to date to mirror the shift to electronic video and comprises new details on compression, tv criteria, liquid crystal display monitors, HD, and gear. This booklet positive aspects the available Media guide structure, within which each subject is roofed in pages: considered one of explanatory textual content and one among figures. *Gentle creation to video technology*No technology or math history necessary*Includes considerable illustrations
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Additional info for Basic TV Technology [Digital and Analog]
Color temperature has nothing to do with heat or cold. The higher the color temperature, the more blue there is in the light. The lower the color temperature, the more orange there is in the light. The light outside on a bright, sunny day might be around 5600Њ K (Kelvin, the scale used to measure color temperature). The light in your home is probably around 2600Њ K. This is why the colors in the photographs look so different. If you use a flash indoors, the light will be the same color temperature as daylight and your photographs will look fine.
White Balance To white balance a camera, simply aim and focus it on a white card and push the white balance button. The electronic circuitry of the camera will then adjust its light reception so that the green CCD produces 59% of the picture, the red CCD produces 30%, and the blue CCD produces 11% (see previous discussion). Since the camera is now properly mixing the three primary colors, the rest of the color spectrum will be fine. 34 Beam splitter Lens E N C O D E R R G B CCDs Filter wheel How the Eye Sees Light (2) Color TV camera, showing location of filter wheel.
If two pieces of equipment use the same CODEC, they will talk to each other digitally. If the equipment uses different CODECs, they will not talk to each other digitally and you will have to use the analog connections. Obviously then, when buying equipment or putting together a studio, you want to buy digital equipment that can all use the same CODEC. That way everything can remain in digital form throughout. Many digital formats are available, so ensuring that everything you buy uses the same CODEC is critical.