A&P D40 ISO Comparison

Discussion in 'Lifestyle' started by pawis, Dec 3, 2008.

  1. pawis

    pawis werd em up

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    So with asking on suggestions on what lens to get for the indoor sports and talk about the ISO performance of the D40 I got a little curious and did a comparison. Images with full crops... but no sub atm, a little help?

    The concern was using ISO800 and its not too bad, but im a noob so what do i know :noes:

    ISO200
    i464.photobucket.com/albums/rr2/siwap/D40%20Iso%20Comparison/200copy.jpg

    ISO400
    i464.photobucket.com/albums/rr2/siwap/D40%20Iso%20Comparison/400copy.jpg

    ISO800
    i464.photobucket.com/albums/rr2/siwap/D40%20Iso%20Comparison/800copy.jpg

    ISO1600
    i464.photobucket.com/albums/rr2/siwap/D40%20Iso%20Comparison/1600copy.jpg

    ISO3200
    i464.photobucket.com/albums/rr2/siwap/D40%20Iso%20Comparison/3200copy.jpg
     
  2. Bloke

    Bloke Banned

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    are those exposed right
     
  3. pawis

    pawis werd em up

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    i think so? i tried to keep the metering the exact same(just centered right in the middle) and every bump in iso was always 2 shutter speeds faster to get it to meter the same... lol, i dunno if i did this test right, i just figured its what id do to compare em :dunno:
     
  4. Mutombo

    Mutombo New Member

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    200
    [​IMG]
    400
    [​IMG]
    800
    [​IMG]
    1600
    [​IMG]
    3200
    [​IMG]
     
  5. hurleyint1386

    hurleyint1386 Someone has sand in their vagina

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    Probably looks weird because there's not much darkness in the shot, so it's harder to find 18% gray.
     
  6. tenplanescrashing

    tenplanescrashing Active Member

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    I was thinking this is a horrible subject for an ISO test
     
  7. hurleyint1386

    hurleyint1386 Someone has sand in their vagina

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    :werd:

    Lower light shots are better.
     
  8. jared_IRL

    jared_IRL OT Supporter

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    wait... what the hell are you guys talking about?

    the shots are consistent and clearly show the effects of the high iso.

    I don't see how '18% grey' factors into this at all.
     
  9. hurleyint1386

    hurleyint1386 Someone has sand in their vagina

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    I was taught that when using the camera light meter, it captures the scene and tries to properly expose the sensor to 18% gray for the correct exposure. If you use the zone system, it helps get a good exposure of the scene. If you're shooting in a white out snow storm, the camera is going to try and create 18% gray, so when you look at the pictures, the snow looks more gray than white. To make the snow look white, you have to over expose for the picture to look best. Same with black, if you shoot a person with a black shirt on in front of a black background, then you want to under expose to get the detail of the black.

    That's just what I was taught
     
  10. hurleyint1386

    hurleyint1386 Someone has sand in their vagina

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    ... I guess I don't see what exposure has to do with it anymore either haha
     
  11. jared_IRL

    jared_IRL OT Supporter

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    ok. :rofl:

    I read that about 10 times trying to make the connection....
     
  12. Pants

    Pants New Member

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    They all seem a bit underexposed, but as Jared said they're consistent so it doesn't really matter. I'm more interested to know if automatic white balance was used, because a couple have more of green tint to them than the others. I can't tell if that's from the ISO setting or the AWB coming up with slightly different settings for each exposure.
     
  13. pawis

    pawis werd em up

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    used the WB preset for incandescenet lighting so it wasnt on auto
     

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