what is a blow-up 70mm film? - EAS

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  1. Some 70mm blow-ups of scope films maintain their "scope" ratio by not filling the top and bottom of the frame. Also, resolution can increase with a blow-up because the grain from a positive 70mm print will be severely reduced (due to much less magnification) than a 35mm print.
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    What is a 70 mm blow-up?The 35 mm to 70 mm "blow-up" process produces 70 mm release prints from 35 mm negatives, so that films shot on the smaller format could benefit from 70 mm image and sound quality. This process began in the 1960s with titles like The Cardinal (1963) [10] and continues up until the present day, with the height of its popularity being in the 1980s.
    en.wikipedia.org/wiki/70_mm_film
    What is 70 mm film?70 mm film (or 65 mm film) is a wide high-resolution film gauge for motion picture photography, with a negative area nearly 3.5 times as large as the standard 35 mm motion picture film format. [1] 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.
    en.wikipedia.org/wiki/70_mm_film
    What is the difference between a 35mm and a 70mm print?For one thing, the 70mm prints are considerably more expensive than 35mm prints but this is offset by the fact that the 70mm prints, because of the wider film, new projectors and more careful handling in the large format--last infinitely longer than 35mm prints.
    www.widescreenmuseum.com/widescreen/35-70mm.htm
    What size is 65 mm film?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. The additional 5 mm contains the four magnetic strips, holding six tracks of stereophonic sound.
    en.wikipedia.org/wiki/70_mm_film
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    https://en.wikipedia.org/wiki/70_mm_film

    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) … See more

    Films formatted with a width of 70 mm have existed since the early days of the motion picture industry. The first 70 mm format film was most likely footage of the Henley Regatta, which was projected in 1896 and 1897, but … See more

    Due to the high cost of 70 mm film and the expensive projection system and screen required to use the stock, distribution for films using the stock was limited, although this did not always hurt profits. Most 70 mm films were also released on 35 mm film for a wider … See more

    Overview image

    Ultra Panavision
    An anamorphic squeeze combined with 65 mm film allowed for extremely wide aspect ratios to be used while still preserving quality. This was … See more

    Standard 65 mm (5/70) (Todd-AO, Super Panavision)
    • spherical lenses
    • 5 perforations/frame (1 perforation = 0.1875", thus 1 frame of 70 mm = 0.9375" or 15/16")
    • 42 frames/meter (12.8 frames/ft) See more

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  4. 70mm blow up (1: 1.85) | Home Theater Forum

    https://www.hometheaterforum.com/community/threads/...

    WebNov 03, 2004 · Some 70mm blow-ups of scope films maintain their "scope" ratio by not filling the top and bottom of the frame. Also, resolution can increase with a blow-up

  5. https://groups.google.com/g/rec.arts.movies.tech/c/JAtDBYpF4Hw

    WebSep 08, 2021 · I'm pretty certain that "Rollerball" was shot in flat 35mm; the 70mm blow-up was an afterthought. I distinctly recall one extreme closeup of John Houseman in which …

  6. 70mm Blow Up List 1979 - by in70mm.com

    https://in70mm.com/presents/1963_blow_up/year/1979/index.htm

    WebOAR blow-up. The film’s Oscar-winning mono soundtrack was remixed for this re-issue (and subsequent video release). From a one-off midnight screening in the 1990s : Grease …

  7. 70mm Blow Up List 1984 - by in70mm.com

    https://in70mm.com/presents/1963_blow_up/year/1984/index.htm

    WebOAR blow-up. This release debuted a new WB logo. 70mm trailer: “The Never Ending Story”. "Greystoke: The Legend Of Tarzan, Lord Of The Apes" Super 35: Mar 30 (USA) …

  8. www.widescreenmuseum.com/widescreen/35-70mm.htm

    WebThe optical printer de-anamorphoses ("unsqueezes") the image on the negative frame and enlarges it from four holes in height to five, printing on 70mm release positive stock. Many viewers, thinking in terms of the fuzzy …

  9. Doctor Zhivago 70MM Blow-up Picture Quality. Good or Bad?

    https://rec.arts.movies.tech.narkive.com/DKKf0mx1/...

    WebThomas is course right that a 70mm Blow-Up from 35mm has many advantages and I would like to emphasize the ability to drive larger screens as it makes all the difference …

  10. Super Technirama 70, 8/35mm blow-up to 70mm possible?

    https://cinematography.com/index.php?/forums/topic/...

    WebJun 05, 2018 · We have the Super Technirama negatives to a french film made in Brazil in the 1960s, that we're considering to blow up to a 70mm release print. To be precise, the …

  11. https://www.reddit.com/r/imax/comments/wk1xs4/do...

    Webif the print is 70mm your audio is going to more than likely be a digital asset that is synced via the multichannel system at the theater. So its possible an atmos mix could exist, but …

  12. What killed the 70mm blow up of new releases? - Home Theater …

    https://www.hometheaterforum.com/community/threads/...

    WebAug 26, 2003 · Much of the reason why filmmakers liked 70mm blowup was the 6-track sound, so digital killed that. Higher quality 35mm printing Lack of 70mm equipped …

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