Originally Posted by arminpohl
just googled DVD PLAYER VERTICAL STRETCH and got a hit on a Samsung HD950. It's not a HD player but has 1080 upconversion and vertical stretch called EZView.
what about the proj panny ae2000U. it does the vertical stretch - so maybe that's all I need.
The Samsung works, but is not what I would call a "good" video device as it hard clips the blacks and whites. It does however come in handy for those annoying times when subtitles are located in the black bars. It seems that it is able to separate the bitmap (subtitles) from the picture, so whist it stretches the image, the subtitles remain at the intended height in relation to their position on the screen. The lens also stretches them out which I find is a good thing - kind of like reading text on the PC where Verdana is easier to read then Times Roman because it (Verdana) is a wider font.
There is however a bit of a myth about projectors with vertical stretch. If the projector can display a "scaled" image, it is not the projector that is stretching the image, but rather the fact that the source is able to be displayed without electric stretch.
What this means is that the projector normally locks to 16:9 "wide" or "full" mode for 16:9 program. The display is electrically stretching the image.
Because in CIH (when using a lens) we want to perform this stretch optically, we need a projector that will not lock to 16:9.
The said lock is a commer safty feature - IE manufacturs want consummers to be able to plug and play HD sorces, so they designed their displays to lock to what is normally the correct mode for HD viewing - that is 16:9.
Not all manufactures do this however and it has worked in our favour as by default, we are actually displaying the image incorrectly.
As CIH becomes more and more popular (many thanks go out to Shawn Kelly of Panamorph for his dedication and pro-active marketing), manufactures that previously had locked their displays to 16:9 are now offering solutions for plug and play CIH. A classic example is SONY. Up until their Pearl range, all of their projectors would lock to 16:9 (which they call "full") for HD inputs. Today they offer a mode called "Anamorphic Zoom".
A simple test to this theory is to set the source from 16:9 to 4 x 3, and you won't have the so called "vertical stretch" option any more...