Leader LV5490 Checks the UHD Detail in NEP Visions Production from Londons West End posted: 02/06/2016
NEP Visions, one of the worlds most distinguished outside broadcast service providers, chose a Leader LV5940 4K multi-format waveform monitor as the master reference instrument during the recent UHD capture of Martin McDonaghs play, Hangman. Performed at the Wyndham Theatre in Londons West End, the production has received very positive reviews including an accolade from The Telegraph as the best new play of the year.
The LV5940 proved very useful both for initial lineup and during the stage production, says Chris Cannon, Head of Vision & VT at NEP Visions. It enabled us to ensure precise phase alignment between the four HD-SDI channels that carry the UHD signal stream. We also used the LV5490 to check the colorimetry of the six Sony PMW-F55 cameras we used for for the project. It performed very well and has the further advantage of being extremely compact.
The resultant 173 minute production, starring David Morrissey, Andy Nyman and Johnny Flynn, has been delivered to Vue Cinema audiences around the UK as a 4K Digital Cinema Package. It was created by National Theatre Live in partnership with the Royal Court and Playful Productions.
Leader was the first manufacturer to bring a 4K waveform monitor to the market, introducing the LV5490 at NAB at NAB 2013 where it promptly won two industry awards, adds Koichi Fukagawa, Market Development Manager at Leader Electronics Europe. Ongoing developments including a range of new options have secured its position as the logical choice for any broadcaster, production studio, outside broadcast company or post house now working in 4K or planning to do so. With the LV5480 variant, customers can start with an HD/SD/sub-SD model and add 4K capability when they choose.
The Leader LV5490 is a highly versatile waveform monitor supporting the full range of standard video production and transmission resolutions from 525 and 625 standard definition up to 3840 x 2160 and 4096 x 2160 4K ultra-high definition. It incorporates a 1920 x 1080 9 inch LCD monitor with a wide viewing angle and high quality colorimetry. This allows simultaneous analysis of up to four video channels. The instruments 4K capability is particularly useful to people working with latest generation cameras, whether for digital cinematography or high-end broadcast applications.
Equipped with eight input connectors, the LV5490 accepts up to two 4K signals. In the 4K video format mode, 3G-SDI dual link or quad link is supported. Up to four 3G-SDI dual link 4K video inputs or up to two 3G-SDI quad link 4K video inputs can be selected for display, or two sets of HD-SDI dual link signals. In the SDI mode, up to four signals can be displayed simultaneously. The LV5490 is also equipped to handle video signals via two-sample interleave as well as square division. Two-sample interleave is the approved standard for 4K.
The LV5490 can be operated in a very wide selection of test and measurement roles. These include waveform, vector, picture monitoring, SDI signal status (which looks for cyclic-redundancy-check errors and embedded-audio errors), an event log, data dump and four-channel timing display. Waveform, vector and picture can be viewed simultaneously on the LV5490 screen. Simultaneous display and overlay display of multiple SDI inputs is possible. Size and location of individual channel displays can be adjusted using a USB mouse. The LV5490 can also be controlled remotely using standard KVM tools.
The integral Leader CINELITE feature allows the user to measure the luminance levels at different points in a scene (up to 3 points). CINEZONE uses false colors to indicate luminance levels in a scene and is particularly suited to green screen chroma-key virtual-set alignment.
In addition to its video test and measurement capabilities, the Leader LV5490 incorporates a versatile selection of audio monitoring and analysis tools, which are available with the Digital Audio option. These include 4 x 4 channels of SDI audio de-embedding, lissajous display, surround-sound display and volumetric display. Up to 16 channels of de-embedded SDI audio can be displayed on screen and output as discrete AES3 feeds.
Additional features of the LV5490 include video frame capture, instrumentation screen capture, timecode display, ID display and a 4K pattern generator with embedded audio.
Eye pattern, including jitter waveform display and Dolby decoding, can be ordered as optional facilities along with a CIE 1931/1976 color space chart which can display BT.709, DCI (P2) plus BT.2020 (the 4K standards full ITU recommended color space).
LV5490 operators can adjust the size of up to four displays on the screen to suit specific tasks. This allows easy magnification and inspection of detail on the instruments 9 inch 1920 x 1080 LCD screen instead of being limited to fixed size quadrants. The LV5490 also comes with a 1920 x 1080 HD DVI-D and HD-SDI rasterized output for display on a larger monitor.
Fully portable, the LV5490 has a footprint of just 8.77 inches wide by 14.7 inches deep and a height of 7.44 inches (223 x 360 x 189 mm). The instrument weighs only 10.4 pounds (4.72 kg). A rack mounting adapter is available.
NEP Visions has 30 years experience in covering the World's premier events. Ranging from being host broadcaster for The Royal Wedding in 2011 to providing HD fly-packs in Kazakhstan, NEP Visions has distinguished itself as one of the worlds leading outside broadcast providers. Specialising in the latest technical solutions coupled with experienced delivery crew and project management, NEP Visions has an extensive range of production facilities with a full in-house technical development and support crew to back it up. The Visions fleet is equipped with the latest remote and mobile production opt
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Leader LV5490 Checks the UHD Detail in NEP Visions Production from Londons West End posted: 02/06/2016 
