Iso 100 - 1600

Discussion in 'Fuji (Fujifilm)' started by bomber.comodoro, Jun 14, 2007.

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  1. bomber.comodoro

    bomber.comodoro Member

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    I have a S700 finepix and I have a doubt about ISO settings. When a take a shot with ISO 100 the picture seems to have more definition that a 1600 ISO setting. I aways think that higher ISO higher quality... or I m rong about it..

    By the way, what ISO means? what is ISO??

    Thanks
     
  2. Wail

    Wail Well-Known Member

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    The lower the ISO number the better picture quality you will get .. it is in reverse of what you've been thinking! As you increase ISO number you will also increase picture "noise" which means more grainy pictures.

    This link does an outstanding job of giving a lot of details on this matter: -

    http://www.photoxels.com/tutorial_iso.html
     
  3. usapatriot

    usapatriot Well-Known Member

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    ^ Yup. :)

    The higher the ISO the more "noise" in the picture the lower the ISO the less "noise" in the picture, always try to stick to lower ISO's if you can help it.
     
  4. avisitor

    avisitor Well-Known Member

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    Higher = Increased Noise
    Lower = Decreased Noise

    Normally you can get away with 400 without noticeable noise, although on Fujis you tend to be able to go higher.
     
  5. avisitor

    avisitor Well-Known Member

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    Oh, ISO stands for International Organization for Standardization
     
  6. danboris

    danboris Active Member

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    Um, isn't ISO the speed
     
  7. usapatriot

    usapatriot Well-Known Member

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    In digital it is the sensitivity of the sensor.
     
  8. avisitor

    avisitor Well-Known Member

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    Yes, it's film speed. The standard was created by the International Organization for Standardization to replace the aging DIN system of measurement. DIN is the German organization for standardization. I was asked what it means, I guess, I took it literally and gave the meaning of the acronym. ISO also created other standards like the ISO disk imaging standard hence, .iso
     
  9. AKAJohnDoe

    AKAJohnDoe News/Review Writer News/Review Writer

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    ISO is an international standards organization. There are several ISO standards relating to audio and visual scales of measurement. The one for film replaced localized standards such as ASA, DIN, and GOST. There is also a performance-based ISO standard for digital.
     
    Last edited: Jun 24, 2007
  10. avisitor

    avisitor Well-Known Member

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    For what it's worth, ASA speed is equivalent to ISO speed.
     
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