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Thread: image resolution

  1. #1
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    Default image resolution

    Hi a photolab has provided me film scan information like 4 base and 16 base with image size at 72 dpi jpeg format. Is this good quality and can this make a good detail 8R print ? Dont really under the 4 base and 16 base . Any one can help ? Thank you .

  2. #2

    Default Re: image resolution

    Quote Originally Posted by Rich1048 View Post
    Hi a photolab has provided me film scan information like 4 base and 16 base with image size at 72 dpi jpeg format. Is this good quality and can this make a good detail 8R print ? Dont really under the 4 base and 16 base . Any one can help ? Thank you .
    Scan resolution--Softcopy: base/16 (128192), base/4 (256384) and base (512768); hardcopy: base (512768), 4 base (10241536) and 16 base (20483072).

  3. #3
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    Default Re: image resolution

    Sorry, still don understand. Is there any different in base for scanning and printing ? So which one is the lab information refer to ? Thanks

  4. #4
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    Default Re: image resolution

    Really no one there to help me ? thanks in advance

  5. #5

    Default Re: image resolution

    Hi,

    Though not conversant in the trade of scanning and printing, here's my attempt at interpreting Isisaxon's explanation.

    4 base scanning yields an image file of 1024x1536.
    16 base scanning yields a image file of 20483072.
    (In addition to his numbers, also see http://en.wikipedia.org/wiki/Photo_CD for starter intro)

    Print-wise, an 8R print is 8"x10" (http://en.wikipedia.org/wiki/Photographic_printing). For good detail, you should print at 300dpi, so a 8"x10" print requires an image file of 2400x3000.

    Matching the scanning/printing, you can see from the above that the 16 base scan should give a file that will be close to 300dpi printing, so my guess would be yeah - 16 base scan should be OK for printing at 8R sizes.

    HTH. Additionally, hope I am correct

  6. #6
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    Default Re: image resolution

    Thanks really Ah zeep. I also think to get the maximum scan at 16 base to try it out.

  7. #7

    Default Re: image resolution

    Quote Originally Posted by ah.zeep View Post
    Hi,

    Though not conversant in the trade of scanning and printing, here's my attempt at interpreting Isisaxon's explanation.

    4 base scanning yields an image file of 1024x1536.
    16 base scanning yields a image file of 20483072.
    (In addition to his numbers, also see http://en.wikipedia.org/wiki/Photo_CD for starter intro)

    Print-wise, an 8R print is 8"x10" (http://en.wikipedia.org/wiki/Photographic_printing). For good detail, you should print at 300dpi, so a 8"x10" print requires an image file of 2400x3000.

    Matching the scanning/printing, you can see from the above that the 16 base scan should give a file that will be close to 300dpi printing, so my guess would be yeah - 16 base scan should be OK for printing at 8R sizes.

    HTH. Additionally, hope I am correct
    Correct.. I was still thinking how I could explain.

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