Acceptable Overscan for CIH ? - AVS Forum
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post #1 of 5 Old 07-12-2014, 06:15 AM - Thread Starter
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Question Acceptable Overscan for CIH ?

I was wondering what is considered acceptable for picture overscan onto the screen frame for CIH for example would it be half and inch or an inch ?
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post #2 of 5 Old 07-15-2014, 08:01 PM
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You'll need to overscan to compensate for pincushion on a flat screen. How much depends on the screen size and throw ratio. 0.5"-0.7" typical. Assuming you mean using an anamorphic lens.
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post #3 of 5 Old 08-21-2014, 07:00 AM
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A 2.40 letterbox still show slivers of black and 1.85 will show slightly larger black bars, so some over shoot is reqired to make a true CIH image.
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post #4 of 5 Old 09-07-2014, 12:28 PM
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Quote:
Originally Posted by CAVX View Post
A 2.40 letterbox still show slivers of black and 1.85 will show slightly larger black bars, so some over shoot is reqired to make a true CIH image.
Those of us that have an external video processor have the option of adjusting for films that have slightly different height and or width. This is especially true of DVD where there is less attention to standards. I have presets for 1.78 (HDTV), 1.85 (wide-screen), 2.35 and 2.40 (cinemascope) and of course Academy/SDTV (1.37/1.33).
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post #5 of 5 Old 09-08-2014, 07:45 AM
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Quote:
Originally Posted by CRGINC View Post
Those of us that have an external video processor have the option of adjusting for films that have slightly different height and or width. This is especially true of DVD where there is less attention to standards. I have presets for 1.78 (HDTV), 1.85 (wide-screen), 2.35 and 2.40 (cinemascope) and of course Academy/SDTV (1.37/1.33).
You may notice that some of the re-issued BD titles in 3D that were 1.85:1 are now 1.78:1. It is only 4%. Whilst this does clip the sides, I prefer to have image from top to bottom and max out the 1080 vertical rez.

Mark Techer

I love my Constant Image Height system!
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