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Thread: Why do digital cameras need iso?

  1. #41

    Re: Why do digital cameras need iso?

    A quick Kahn Academy type tutorial on how ISO works. Also includes an explanation of why higher ISO produces more noise at about 5 minutes in.

    As for why ISO is there... I simply see it as an additional tool to create the image I want. For instance, I may want a large depth of field, but also need a fast shutter speed. There isn't always enough available light, so increasing the ISO will achieve what I'm looking for.
    Last edited by DoesNotFollow; 6th September 2012 at 05:54 AM.

  2. #42

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    Re: Why do digital cameras need iso?

    To paraphrase Crocodile Dundee: "Noise? Call that noise?! Now this is noise."

    (f/13 @ 25 sec, ISO 800 - no post-processing whatsoever. Guess the sensor ;-)

    Why do digital cameras need iso?

  3. #43

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    Re: Why do digital cameras need iso?

    I wonder how you got that interesting texture effect Ted

  4. #44

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    Re: Why do digital cameras need iso?

    Quote Originally Posted by jcuknz View Post
    I wonder how you got that interesting texture effect Ted
    Yes, my fine camera is perfect for product shots - but as for high or even medium ISO, fuggeddaboudit.

    More, and somewhat better pics in a series, can be seen here:

    http://forums.dpreview.com/forums/re...hread=42418604

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