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Ask the Expert with Broadcast Service Centre

Ask the Expert with Broadcast Service Centre’s Dave LlewellynThis month we visited independent service company, Broadcast Service Centre Ltd (BSC), specialising in providing top quality technical support for a wide range of equipment within the Broadcast and Pro video industry. Dave Llewellyn has worked as a broadcast engineer for BSC (Broadcast Se...

Submitted by Dennis Lennie

Published 01 May 2009

Eye to Eye. Whats new in test and measurement 2009

The transition from analogue to digital programme production, storage and delivery lulled some innocent folk into anticipating a world without need for test equipment. If required at all, so the thinking went, all signal analysis would be performed in software. Maybe someday. For now, the T&M sector remains alive and well. The following summary out...

Submitted by Dennis Lennie

Published 01 May 2009

HD Camera Measurements and getting the most out of your c...

Recap Parts1 and 2:Parts 1 and 2 covered the theory and actual measurement of white shading, making sure that the camera non-linearities introduced by various different lens systems on a particular camera are compensated. In this issue, Part 3 will investigate setting up colourimetry and exposure as well greyscale adjustments using a waveform monit...

Submitted by Dennis Lennie

Published 01 May 2009

JVC introduces new Final Cut Pro 6

Victor Company of Japan, Ltd. (JVC) further expands its ProHD camcorder line-up by introducing two professional solid state camcorders, the industry's first to store files in the native QuickTime format for Apple's Final Cut Pro™ onto reliable and inexpensive SDHC media cards. The compact hand-held GY-HM100 3-CCD camcorder is introduced in January...

Submitted by Bob Pank#

Published 01 April 2009

Filters for HD Cinematography

The availability of low-cost HD camcorders with film-style tools, like 24 frame-per-second imaging and quality lenses, has put filmmaking capability in the hands of many. To achieve a film-style look, a director of photography can add a compliment of optical filters. Such filters can not only make color and other corrections to the image as it is s...

Submitted by Dennis Lennie

Published 01 April 2009

HD Camera Measurements and getting the most out of your c...

IntroductionImage quality all starts with the correct alignment of the camera which is used to capture the scene either on location or in the studio. The conversion of light into electrical signals involves many processes which can affect the quality of the image. Understanding these various adjustments that are necessary, using a suitable camera c...

Submitted by Dennis Lennie

Published 01 March 2009

Mobile communications Eye to Eye

Point to point communication via satellite is one of the most useful tools available to television and radio reporters in a world of fast news distribution. This short summary looks first at some of the newest SNG link kit and then at broadcast-related telecoms. Advent Communications has introduced an enhanced version of its 1.5m and 1.8m NewSwift...

Submitted by Dennis Lennie

Published 01 March 2009

RF Condenser Microphones why they are so good in the wet

A question I am often asked when people discover who I work for is “Why are ‘RF condenser’ microphones so good in the wet, being so much less susceptible to humidity problems than the more common ‘AF condenser’ microphones?”Basically, AF capacitor microphones use the capsule as a capacitor to store charge. With one fixed plate and the other free to...

Submitted by Dennis Lennie

Published 01 February 2009

Audio acquisition and production

Remembering the days when the average 'portable' sound recorder was heavy enough to induce a hernia, I have high respect for the capabilities of modern digital audio devices. Not least the solid-state recorders that have emerged as successors to the Sony-originated DAT and MiniDisk formats. But avoid anything that lacks XLR connectors unless you ar...

Submitted by Dennis Lennie

Published 01 February 2009

Camera rigs and lighting

The biggest single story at IBC this year, apart from the usual company-eats-company rumours, was the continuing progress of stereoscopy or '3D' as it is currently undersold. A stereoscopic snapshot may well be 3D (displaying length, width and height) but a stereoscopic movie is in fact 4D as it includes a timeline. John Logie Baird set the stereos...

Submitted by Dennis Lennie

Published 01 January 2009

Lights, Camera, Makohead Action

With the movie Quantum of Solace due to hit the big screens in October, audiences around the world are already gearing up for another huge blockbuster from the James Bond stable. The movie, which began shooting at Pinewood studios in November 2007, will undoubtedly include the spectacular action sequences that are the hallmark of James Bond films....

Submitted by Dennis Lennie

Published 01 December 2008

Back in the days before microprocessors

Back in the days before microprocessors, Character Generators were members of the Graphics Department armed with sheets of Letraset and cardboard. The finished caption cards were then handed over to the stage crew who acted as "Caption Pullers". For a title caption sequence, cards were stacked in shooting order alternately into two separate piles (...

Submitted by Dennis Lennie

Published 01 November 2008

Marshall masters LCD

Marshall Electronics has made huge strides in the LCD picture monitor market, with a practical package that fits with many of today’s applications and circumstances. Its LCD panels are light and compact, saving space and weight – obviously very attractive for OB vans. The monitors are recognised for their value for money while frequently winning si...

Submitted by Dennis Lennie

Published 01 November 2008

Getting the best out of your LCD

Getting the best out of your LCDs?Many people who use CRT picture monitors have found the introduction of LCD displays disappointing. Getting the best out of your LCD may not be as simple as it may seem. With a wide choice of vendors and models all proclaiming broadcast quality, it can be difficult to determine which product is most suitable for yo...

Submitted by Dennis Lennie

Published 01 November 2008

A brief history of television graphics

Thirty years ago, television captions were routinely created by sticking white Letraset characters onto black card. Credit rolls were possible using special devices which used long strips of black material onto which the Letraset was stuck, and which were literally rolled, either by an electric motor but sometimes even by hand. There were, of cours...

Submitted by Dennis Lennie

Published 01 October 2008