Sunday, September 22, 2013

Inside Camcorders: Terms, Definitions, DVD Formats/Capacities - What Camcorder is Best for You?

WHAT IS THE CAPACITY DIFFERENCE BETWEEN MINIDV AND FULL SIZE DVD'S?
DVD's appear in Two Sizes. The mini CD admeasurement of 80 mm (about 3 1/8" in diameter) and the Standard CD admeasurement of 120 mm (about 4 ¾" in diameter). The Full Admeasurement DVD's attending just like Standard CD's. DVD's accept two acclimatized sides. Each ancillary can accept two layers for a absolute of four layers per disc.
DVD FORMATS AND CAPACITIES
120 mm (4 ¾") DVD - FULL SIZE DVD
DVD ROM (Read Only Memory) (Full Admeasurement DVD 120 mm)
Maximum of two layers per side
Top Layer: 4.27 Gigabytes
Bottom Layer: 4.27 Gigabytes
Single Sided (two layers) 9.4 Gigabytes
Double Sided (two layers per side) 17 Gigabytes
80 mm (3 1/8") MiniDV
DVD ROM (Read Only Memory)
Maximum of two layers per side
Top Layer: 1.46 Gigabytes
Bottom Layer: 1.46 Gigabytes
Single Sided (two layers) 2.92 Gigabytes
Double Sided (two layers per side) 5.32 Gigabytes
120 mm (4 ¾") DVD - FULL SIZE DVD
DVD WORM (Write Once, Apprehend Many)
Maximum of one layers per side
Single Sided (one layer) 4.7 Gigabytes
Double Sided (one band per side) 9.4 Gigabytes
120 mm (4 ¾") DVD - FULL SIZE DVD
DVD RW (Read Write, Rewritable) and RAM (Random Access Memory)
Maximum of one layers per side
Single Sided (one layer) 4.7 Gigabytes
Double Sided (one band per side) 9.4 Gigabytes
If you just wish to bottle and watch your raw video footage and don't wish to do annihilation else, a DVD camcorder is acceptable choice. Today the miniDV is still the Camcorder of choice. They action the best quality, the bigger alternative and the accomplished affinity with video alteration programs.
Camcorders that almanac to harder drive are apparently traveling to administration in the future, about you will be ashore with lower superior MPEG-2 and lower affinity with video alteration programs.
WHAT IS THE DIFFERENT BETWEEN OPTICAL ZOOM AND DIGITAL ZOOM?
A agenda camcorder's optical zoom involves the use of absolute affective lenses to zoom in (like in a binocular) while the agenda zoom goes in afterpiece digitally and enlarges the account electronically. This after-effects in a lower resolution thereby bearing a lower superior picture. If application optical zoom, there is no accident in quality, but if agenda zoom is used, the angel may become grainy. Attending for a camcorder with a appropriate bulk of optical zoom like 10x or 20x. If you plan to use your Camcorder to band antic events, a 20x or 25x optical is best.
WHAT IS CCD?
A CCD camcorder uses a small, ellipsoidal section of silicon rather than a section of blur to accept admission ablaze alleged a Charge-Coupled Device (CCD). The CCD is the a lot of aspect of the camcorder because it is a filigree of alone light-sensitive beef alleged "photosites" or pixels. Each photosite is one aspect of the accomplished account that is formed and is alleged a account aspect or "pixel". The added accepted CCDs begin in camcorders and added retail accessories accept a pixel adjustment that is a few hundred pixels top by a few hundred pixels advanced (e.g., 500x300, or 320x200), acquiescent tens of bags of pixels.
DO YOU KNOW AN IMAGE MADE FOR WIDESCREEN IS DIFFERENT THAN ONE ADAPTED TO WIDESCREEN?
So why is the way you almanac widescreen images so important? Because you wish an angel fabricated for widescreen, not acclimatized for widescreen. Widescreen is the future-every HD television is widescreen. Camcorders should use the absolute amplitude of its angel sensor to abduction your adored video in accurate 16:9 format. What aberration does that make? With added pixels captured, you get bigger angel quality. Some camcorders force the added account into a abate amplitude on the sensor - giving you a beneath accurate image, with beneath pixels and lower quality. Remember - widescreen is the approaching - be abiding you advance in that approaching if allotment your Camcorder.
WHAT'S THE DIFFERENCE BETWEEN HD AND HDV?
HDV is a video band recording architecture developed to almanac HD signals. Therefore, HDV is absolute top definition. It has two appropriate characteristics from beforehand HD recording formats. First, it utilizes broadly accessible and economical DV band cassettes as a accumulator medium. Secondly, it employs awful able MPEG-2 compression.
WHAT IS RGB?
Bayer blush clarify adjustment is a accepted architecture for agenda accretion of blush images. In adjustment to access blush information, the blush angel sensor is covered with either a red, a green, or a dejected filter, in a repeating pattern. This pattern, or sequence, of filters can vary, but the broadly adopted "Bayer" pattern, which was invented at Kodak, is a repeating 2x2 arrangement.
When the angel sensor is apprehend out, band by line, the pixel adjustment comes out GRGRGR, etc., and again the alternating band adjustment is BGBGBG, etc. This achievement is alleged consecutive RGB (or sRGB).

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