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TV Test Card Pattern Television Signal Closedown Cover For The iPad Mini

$43.90

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Designed for youby ART2SHIRT
Device Type
iPad Mini
More (4)
Style
Glossy
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About this product
Style: Case Savvy iPad Mini Glossy Finish Case

Shield your iPad Mini from daily damage with a customizable iPad Mini case. Made of lightweight hard shell plastic, this case clips onto the back of the iPad adding protection without the bulk. Made with a glossy finish, your designs, photos, and text will look great displayed on this one of a kind case.

  • Designed for Apple’s iPad Mini.
  • Hard shell plastic case with glossy finish.
  • Smart Cover compatible.
  • Access to all ports, controls & sensors.
  • Customize with photos, artwork and text.
  • Designer Tip: To ensure the highest quality print, please note that this product’s customizable design area measures 5.85" x 8.45". For best results please add 1/3" bleed.
About this design
available on 72 products
TV Test Card Pattern Television Signal Closedown Cover For The iPad Mini
A test card, also known as a test pattern, is a television test signal, typically broadcast at times when the transmitter is active but no program is being broadcast (often at startup and closedown). Used since the earliest TV broadcasts, test cards were originally physical cards at which a television camera was pointed, and such cards are still often used for calibration, alignment, and matching of cameras and camcorders. Test patterns used for calibrating or troubleshooting the downstream signal path are these days generated by test signal generators, which do not depend on the correct configuration (and presence) of a camera. Digitally generated cards allow vendors, viewers and television stations to adjust their equipment for optimal functionality. The test card usually has a set of line-up patterns to enable television cameras and receivers to be adjusted to show the picture correctly. (See SMPTE color bars.) Most modern test cards include a set of calibrated color bars which will produce a characteristic pattern of "dot landings" on a vectorscope, allowing chroma and tint to be precisely adjusted between generations of videotape or network feeds. SMPTE bars—and several other test cards—include analog black (a flat waveform at 7.5 IRE, or the NTSC setup level), full white (100IRE), and a "sub-black", or "blacker-than-black" (at 0 IRE), which represents the lowest low-frequency transmission voltage permissible in NTSC broadcasts (though the negative excursions of the colourburst signal may go below 0 IRE). Between the colour bars and proper adjustment of brightness and contrast controls to the limits of perception of the first sub-black bar, an analogue receiver (or other equipment such as VTRs) can be adjusted to provide impressive fidelity. The most famous Test Card shown in the UK since 1967 and also shown in some other countries is Test Card F, which features a little girl (Carole Hersee) and a clown doll in a circle in the centre of the picture.
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Other Info
Product ID: 256981260445155948
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