will lenses become 'old school' when true Anamorphic BD's come out??? - AVS Forum
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post #1 of 6 Old 06-18-2013, 10:42 AM - Thread Starter
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title says it all.......

Terrence
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post #2 of 6 Old 06-18-2013, 01:29 PM
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No. If you think about how Constant Image Height projection works, you should be able to see the flaw in your logic.

If the content is encoded with a vertical stretch inherent in the video transfer, you'll still need an anamorphic lens to horizontally stretch the image back to proper geometric proportions. In fact, the lens will become necessary. Such discs will not work with the Zoom Method of CIH.

The only thing true anamorphic Blu-rays would eliminate is the need for v-stretch scaling in Blu-ray players, projectors or external video processors.

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post #3 of 6 Old 06-18-2013, 03:47 PM
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It's the A-lens users that want this feature. It's really of no benefit to anyone else.
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post #4 of 6 Old 06-19-2013, 07:45 AM - Thread Starter
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ok...now I understand. Pretty much still a newbie at CIH! redface.gif thanks you guys for clearing this up wink.gif

Terrence
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post #5 of 6 Old 06-19-2013, 06:48 PM
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This is designed for 21:9 displays and those of us that use an A-Lens with our projectors.

If you don't have an A-Lens or a 21:9 TV and want to view this type of program, you would need a VP to vertically compress the image and generate black bars top and bottom.

If the format gets approved by the BDA and is encoded correctly, the letterboxed version will be what provides backwards compatibility with all existing systems.

Mark Techer

I love my Constant Image Height system!
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post #6 of 6 Old 06-20-2013, 04:40 AM
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I fear though, that despite the great work of John, this won't be anything we have to worry about. I think we're beyond the point of something this major being added to Blu-ray, and 4k is the new bright shiny thing. Hopefully we'll see true "ultrawide" included in 4K in some form, but I'd put the odds against it personally.

See what an anamorphoscopic lens can do, see movies the way they were meant to be seen
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