Throughout 2006 Hifh Definition has grown, and it's set to grow even faster in 2007. at teh begining of 2006 you could by a High Definition TV, but there was noone broadcasting High Definition programs, by the end of 2006, you could purcase High definition TV's in supermarkets and purchase High Definition DVDs (Blue Ray) and watch channels from Sky in High Definition. But how does this affect the church? Should we be looking at installing High Definiton projectors when we only took down our Overhead projector last year? What are the pros and cons? How can we mix Standard video, computers and HD video?

Read on, and hopefully theses and other questions will be answered!

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This article is still under construction!

{mospagebreak title=What is HD?}What is HD?

HD stands for High Definition; a higher resolution than the 'standard' TV pictures we've been used to. -This means more detail and clarity in the videos/presentations we watch.

Resolution Differences

When it comes to what this higher resolution is, things get a little complicated! HD covers a range of resolutions, at the moment an image can have 720 or 1080 vertical lines in 16:9 widescreen format, resulting in pixel resolutions of 1280x720 and 1920x1080.

So, compare this to our standard video resolution (PAL) of 720x576 HD is much higher. The resolution of most current video projectors is 1024x768 (XGA), which is simular, but still not as high as the 720 format. All HD videos are widescreen 16:9 compared to Standard video of 4x3.

As you can see, HD1080 is huge compared to PAL - it has over 5 times as many pixels.

Unlike standard definition, pixels aren't being stretched to fit the 16:9 image. You won't see letterboxing, except on extra-wide movies like, if you're watching HD content that's been produced in the older 4:3 aspect ratio you'll get black bars on the side instead.

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