Originally Posted by p@55w0rd
So it sound like it is creating a larger overscan on both hight and width. So the end result is less info when it comes to width, but more vertical resolution.
THere are 5% "action safe" and 10% "title safe" in the traditional film/video creation, so that TV can overscan between 5-10% to cut off boundary noises or issues. So film makers always keep the vital information within the safe area to make sure the overscan cuts off non-important info.
HD65 uses this principle to achieve the "Constant Height, constant width" idea.
For 16x9 content, 5% top and bottom are masked to create a near 1280x640 2.0:1 image. So the image shown in this 2.0:1 ratio preserves the safe area information.
For 2.35:1 content, we cut off side info of the 2.35:1, to get the center-portion 2.0:1 image. The top/bottom of the 2.35 image are intact, while the sides have to cut off 7% each, slightly more than 5%, but the image still looks relatively wide. In fact, if one uses a HD CRT TV, one can measure the 2.35:1 content on the screen, it's much less than 2.35:1, most like 2.1:1 or less.
If a 2.0:1 screen is used, user will not see the "masked area", thus creating what Guitarman calls it "budget-minded Constant Height Theater" for 16x9 and 2.35:1 movies. If a 2.0:1 screen is not easily found, a product like Screen Goos or their new product Goos Toob can be used to create a 2.0:1 aspect ratio screen in DIY fashion.
If one does not like it, and would like to preserve all the info, simply disables this Super Wide on the OSD, then HD65 performs just like any 16x9 720p projector.
THe idea where it came from is that I helped my sister to install a H31 in her house, shooting out 120" image 2, 3 years ago. She enjoys it quite a lot, and feel her 50" PDP is too small now.
But she constantly called me complaining that why some movies fill the screen, while some have top and bottom "black bars", is there something wrong with her projector, and so on. And she does not like the "black bars" citing inerfering her watching the movies. And I can't tell her that she needs to spend over $1000 to get a decent 16x9 lens, so I came up with the idea so that future entry 720p owners can enjoy the Constant height movie experiences easily.