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Thread: 35mm film effective megapixel rating

  1. #1

    Question 35mm film effective megapixel rating

    If one were to convert a 35mm film straight into a digital sensor, what would be the estimated dimensions / megapixel rating? How fine is each grain in a strip of film?

  2. #2

    Default Re: 35mm film effective megapixel rating

    http://www.kenrockwell.com/tech/real-raw.htm

    provided that KRW is right and/or u agree with him .

  3. #3

    Default Re: 35mm film effective megapixel rating

    Ken Rockwell is merely describing the advantages of using film versus digital Raw pictures. There is zero quantification what a 35mm film really translates in terms of pixel dimensions and megapixel rating. Is it 16000 x 10667? or 32000 x 21333? or even greater than that? What is the average dot pitch for a single grain in 35mm film?

  4. #4

    Default Re: 35mm film effective megapixel rating

    Hmmm, if what Brad Templeton calculated is accurate, we may well be getting close to 35mm film grain resolution, perhaps around 7000 x 4667 pixels. approximately 33 mega pixels.

    http://pic.templetons.com/brad/photo/pixels.html

  5. #5
    Member ProMushr00m's Avatar
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    Default Re: 35mm film effective megapixel rating

    =_______= Ken rockwell loves film a lot man.. Always support the film with REALRAW - FILM use FILM use film use film =___= lol... how big can a 35mm film print up til without any pixellation?
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  6. #6

    Default Re: 35mm film effective megapixel rating

    Well according Brad Templeton, it is around 7000 x 4667 for 35mm film (33MP). I am somewhat inclined not to believe that however; was expecting something even finer. Only those who manufacture film would have a better idea just how small each grain roughly is.

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    Member 9V-Orion Images's Avatar
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    Default Re: 35mm film effective megapixel rating

    What's the highest resolution that a digital film scanner can go?
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  8. #8

    Default Re: 35mm film effective megapixel rating

    Quote Originally Posted by 9V-Orion Images View Post
    What's the highest resolution that a digital film scanner can go?
    Good question; it appears a high-end scanner scans at 8000dpi. So roughly 1.34" x 8000 = 10720 pixels for width. Height would be around 7146. Making 76.6 megapixels.

    Is that the best or are then even better scanners? I do not know.

    However, it would be important to note that even if the scanner can scan at such a high resolution, and if the grain size of film is actually not that small, the resultant digital scan will show up as a grainy image (read: pixeliated in film context).
    Last edited by icelava; 9th May 2009 at 03:43 PM. Reason: grain

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    Moderator Clown's Avatar
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    Default Re: 35mm film effective megapixel rating

    for PURE film resolution (regardless of the scanner), please refer to this article as different film has different grain sizes which results in different resolution.

    *warning* a very geeky read. but will level up your knowledge by quite a bit if you manage to absorb it.
    Last edited by Clown; 9th May 2009 at 04:10 PM.
    sigh.

  10. #10

    Default Re: 35mm film effective megapixel rating

    Quote Originally Posted by Clown View Post
    ooh hoo hoo, now that's the kinda doc i was looking for. thanks

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    Default Re: 35mm film effective megapixel rating

    I heard that an average 35mm film has the equivalent of 41MP.
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