canon 20D noisy at iso 100? :S

Discussion in 'Photography Equipment & Products' started by UUilliam, Sep 16, 2010.

  1. UUilliam

    UUilliam TPF Noob!

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    here is 2 shots from my canon 20D which is known for its good iso performance,
    I admit it is really good at 1600 compared to other cameras, it is usable at 1600 however, the iso at 100 is a different story :/

    100% crop
    [​IMG]

    full image
    [​IMG]


    has been slightly edited in lightroom (resize and fix colour.)

    I suppose SOME of it might be from the film... but it was ilford ASA 100 I used, it doesn't have any visible grain on the contact sheet...
     
  2. soylentgreen

    soylentgreen TPF Noob!

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    You need to post some more EXIF data. From the image though, it looks underexposed. Images can become noisy if that is the case, no matter what ISO you use. Just not enough light for the sensor to register properly. At lower ISOs, you need a lot more light.
     
  3. UUilliam

    UUilliam TPF Noob!

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    Yes, I underexposed by 2 stops, simple for the fact I was on f2.8 and needed a shutter of atleast 1/60 (had no tripod or anything.)
    but surely it shouldn't create that much noise?

    lens was 85mm f1.8 (canon.)
     
  4. Dao

    Dao No longer a newbie, moving up!

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    I think it should be noisy if you under expose the image. You will see more noise if you try to correct the exposure in PP.
     
  5. AdrianC

    AdrianC TPF Noob!

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    According to the exif data, that picture was shot at 1600 ISO.
     
  6. xsouthpawed

    xsouthpawed TPF Noob!

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    but my 10D isn't noisy at all! and it's the predecessor ;)
     
  7. prodigy2k7

    prodigy2k7 No longer a newbie, moving up!

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    How about instead of basing your whole camera off this one image. You go outside on a bright day, take a picture and see what happens.
     
  8. prodigy2k7

    prodigy2k7 No longer a newbie, moving up!

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    Yep. I see that too.
    "ISO Speed Ratings = 1600"
     
  9. UUilliam

    UUilliam TPF Noob!

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    oops :$ i must have forgot to change i back to 100iso :( DOH!
     

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