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Thread: Shot a Gretag Macbeth at various ISOs

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    Shot a Gretag Macbeth at various ISOs

    I wanted to know exactly how my G1 handle various ISOs so I shot a Gretag Macbeth chart to see the noise levels. Images posted are about 50% of full size but one can see where noise becomes visible.

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    Re: Shot a Gretag Macbeth at various ISOs

    Noise in the ISO1600 file can be cleaned nicely using Noiseware Professional. I would not hesitate using ISO400. ISO800 is about where I would go if I did not want to use NR aggressively.

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    Administrator, Instructor Guy Mancuso's Avatar
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    Re: Shot a Gretag Macbeth at various ISOs

    Yes 800 looks pretty good
    Photography is all about experimentation and without it you will never learn art.

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    Sr. Administrator Jack's Avatar
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    Re: Shot a Gretag Macbeth at various ISOs

    Just for kicks, ran the posted 3200 jpeg through DFine. Loses a little crispness, and granted this is processing a posted crop, not the actual file itself, but frankly looks like it has potential...
    Jack
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    Re: Shot a Gretag Macbeth at various ISOs

    I did run Imagenomic's Noiseware on all the images and from what I see, I can get very clean ISO1600 and a very usable ISO3200. Here's the ISO3200

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    Senior Member kweide's Avatar
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    Re: Shot a Gretag Macbeth at various ISOs

    Try a run thru Noiseware professional. Keen to see results...

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    Re: Shot a Gretag Macbeth at various ISOs

    ISO3200 and ISO1600 noise cleaned with Noise Ninja

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    Re: Shot a Gretag Macbeth at various ISOs

    I find that if I set the G1 to allow ISO changes to 1/3 stop, iso 1250 works great too, 1600 is noticeable worse than 1250.

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