The Blind Leading

Once upon a time, people were prevented from getting married, in some jurisdictions, based on the shade of their skin colors. Once upon a time, a higher-definition image required more pixels on the image sensor and higher-quality optics. Actually, we still seem to be living in the era indicated by the second sentence above. At […]  More

Y4K?

  What should come after HDTV? There’s certainly a lot of buzz about 3D TV. Such directors as James Cameron and Douglas Trumbull are pushing for higher frame rates. Several manufacturers have introduced TVs with a 21:9 (“CinemaScope”) aspect ratio instead of HDTV’s 16:9. Some think we should increase dynamic range (the range from dark […]  More

The Best 3D Conference

Do you think you know something about stereoscopic 3D? Test yourself with the six basic journalistic questions: who, what, when, where, how, and why. Who wrote the first article on holographic television to appear in the SMPTE Journal? What is cyclovergence? When is a seven-second stereo delay appropriate? Where can lens centering be corrected instantly […]  More

The Reversal: Codecs & Capture at NAB 2011

It is common at the annual equipment exhibition of the National Association of Broadcasters (NAB) convention to find products that are smaller, lighter, less-expensive, and better than what came before. Occasionally, there are even breakthroughs. But a complete reversal is something different. Yet that’s what happened at NAB 2011. Some think “How?” is the most […]  More

How Good Is Good Enough?

As usual, there were many new, useful products announced at this month’s annual convention of the National Association of Broadcasters (NAB) in Las Vegas. As usual, there were also many new trends, one sparked by the the U.S. Congress and another by last month’s earthquake & tsunami in Japan. At the event’s Digital Cinema Summit, […]  More

Ex uno plures

There were many wonders at the 17th-annual HPA Tech Retreat in February in the California desert. And many of the more-than-500 attendees at the Hollywood Post Alliance were left wondering. One thing they wondered about was how to accommodate all viewers from a single master or feed. As usual, many manufacturers introduced new products at […]  More

Headphones, History, & Hysteria

Headphones are an integral part of modern media production and distribution. So, who invented them? Here’s one theory: “The first stereo headphones were invented in 1958 by John C. Koss….” That statement may be found at this web site: http://www.bookrags.com/research/headphones-woi/ Here’s another: “[The Beyerdynamic] DT48 was designed in 1937, the first pair of headphones in […]  More

3D and Not 3D: The Knowledge Returns

Last year was a wonderful one for 3D.  In terms of worldwide and domestic box-office grosses, six of the top-10 movies released in 2010 were in 3D. And by year’s end there were almost two dozen models of integrated 3D cameras and camcorders and literally dozens of models of two-camera 3D rigs. There’s just one […]  More

When Did We Come From?

  NPR’s On the Media has been my favorite news show. They explain the how and why of media issues, debunk myths, and correct errors — even their own. When it comes to media technology, however — especially its history — they sometimes get things wrong and don’t correct the errors. Examples of those uncorrected […]  More

How Different Is 3D?

When you watch a televised advertisement for an automobile, do you fear there’s a moving car in the room with you? I didn’t think so. But more on that later. This post is about human perception of 3D imagery. It’s also about how we see moving images in general and about color, sound, carsickness, and […]  More