Does 35 to 70 mm blow up lose a part of the image?
The Wikipedia article on 70 mm film has a section about the process of converting 35 mm film to 70 mm, or "blow-up".
Since 35 mm and 70 mm have different aspect ratios, does that mean that a part of the original 35 mm image is lost in the process? The examples shown in the article do not seem to have black bands at the edges. Or, would theater projectors require a special equipment to project blow-up 70 mm film?
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What is the difference between a 35mm film and a 70mm theater?
70 mm film (or 65 mm film) is a wide high-resolution film gauge for motion picture photography, with negative area nearly 3.5 times as large as the standard 35 mm motion picture film format. As used in cameras, the film is 65 mm (2.6 in) wide. For projection, the original 65 mm film is printed on 70 mm (2.8 in) film.Is 70mm film better than 35mm?
Hence, 70mm is considered better than 35mm because it can project more colours, more detail, more everything out onto the screen. In the days before digital projectors, 70mm was sort of like the equivalent of IMAX. You only ever saw the major blockbusters printed out on the format.Why is 70mm film better?
70mm is a film format with frames that are larger in size and wider in aspect ratio than the standard 35mm film. "From an audience standpoint, it's a much crisper, brighter, and ideally more uniform and stable image," said McLaren.What resolution is 70mm?
It is estimated that 35mm film has a digital resolution equivalent to 4K: 35mm Imax film equates to 6K, while 70mm Imax is closer to 12K.The Technique of 70mm Film
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