10/26/2023 0 Comments High def projector tvThis article will refer to Scope projection as 2.35:1 for clarity.) The difference between these two numbers is negligible and not worth worrying about. Such movies may wind up transferred to home video at either a mathematical 2.35:1 or 2.40:1 ratio depending on the studio and the calibration of the telecine used during the film-to-video transfer. Nonetheless, most people in the film industry continue to call it "2.35:1" out of habit. (*One semantic note: The theatrical standard for "Scope" projection is actually now closer to 2.40:1. As I'll describe below, that same effect can also be achieved in a home theater with Constant Image Height projection. When the movie plays, it should fill all of the visible screen. Curtains or other forms of masking will be drawn in for one aspect ratio and expanded outwards for the other. Most theaters (certainly all the good ones) have adjustable screens that can accommodate both 1.85:1 and 2.35:1 movies. You won't often see black bars in a commercial movie theater. Nevertheless, as far as the TV can tell, it always receives a 16:9 picture. Some of those pixels are used for the active movie image, while others may be used for black bars. Blu-rays are encoded with a resolution of 1920x1080 pixels. Technically speaking, all high-definition Blu-ray content has the same inherent aspect ratio of 16:9 (1.78:1), matching that of the HDTV screen. Black bars fill in the empty space above and below the movie picture. By shrinking the Scope movie image down in size so that it maintains the same width as the 16:9 screen, it will now fit on that screen. The solution to this problem is letterboxing. (Or, more accurately, a large rectangular block into a smaller rectangular hole.) They're just not the same thing. It's like trying to squeeze a square block into a round hole. Obviously, 2.35 is not the same number as 1.78. However, any movie with a wider ratio won't fit properly. Movies of the 1.85:1 shape should nearly fill that screen. A film's director and cinematographer will choose whichever ratio they feel is most appropriate for the content of their movie.Īn HDTV screen has an aspect ratio of 1.78:1. Both ratios serve their own artistic purposes, and have continued to be used just about equally for decades. Currently, theaters are equipped to project films in our two standard widescreen aspect ratios, either "Flat" 1.85:1 or "Scope" 2.35:1*. Eventually, that ratio was largely phased out from usage in feature films (though it obviously continues to be used for television). In the early days of cinema, most movies were shot in the Academy Ratio of 1.37:1. Some movies are photographed wider or narrower than others. To browse through previously answered questions, visit the main HD Advisor page.īack in my Why Don't the Black Bars Go Away? article, I explained the differences between movie aspect ratios. We'll be back next week with more Q&A, so please keep sending your questions to. Editor's Note: This week, our HD Advisor takes a break from the usual Question & Answer format to provide a guide to Constant Image Height projection.
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