DxO sensor test results for XZ1 v LX5 v EX1

Discussion in 'Open Gear Talk' started by bilzmale, Feb 5, 2011.

  1. bilzmale

    bilzmale Super Moderator Emeritus

    Jul 17, 2010
    Perth, Western Australia
    Bill Shinnick
    I know these results are often criticised as being not 'real world' but they make interesting reading. What say you?

    DxOMark - Compare sensors
     
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  2. Ray Sachs

    Ray Sachs SC Legend

    Sep 21, 2010
    Not too far from Philly
    you should be able to figure it out...
    I have no idea how real they are. No appreciable difference between the LX-5 and EX-1. I guess if I was thinking about the Olympus, it might give me a moment's hesitation. But if I tried the camera and it worked for what I like to do and the results looked good to me, I'm sure I'd buy it anyway.

    -Ray
     
  3. bilzmale

    bilzmale Super Moderator Emeritus

    Jul 17, 2010
    Perth, Western Australia
    Bill Shinnick
    Yes Ray - the DxO sensor tests do not take into account the image processing engine but for RAW images they are possibly more relevant.
     
  4. stratokaster

    stratokaster SC Top Veteran

    886
    Dec 27, 2010
    Kiev, Ukraine
    Pavel
    DxO Mark can't even get their facts straight - LX5 and XZ1 use the same sensor, how the hell can they have different pixel pitch? I don't put much stock into their test results.
     
  5. madmaxmedia

    madmaxmedia SC Veteran

    242
    Nov 10, 2010
    Los Angeles
    I think the discrepancy is because the pixel pitch is being automatically calculated from the RAW image size (pixels) and sensor size. According to DPReview the cameras have exact same sensor dimensions (1/1.63 ", 7.89 x 5.81 mm, 0.45 cm²) so the actual sensor output taken by the cameras may be different even if the sensor is the same.

     
  6. pictor

    pictor SC All-Pro

    Jul 14, 2010
    Looking at all those graphs One can see easily, that the Olympus and the Panasonic are completely equal. However, the overall score differs significantly. This is magic. - No, not really. It makes me question the usefulness of the overall score again.
     
  7. RoadToNever

    RoadToNever New to SC

    5
    Feb 8, 2011
    Sweedinn
    Long time reader first time poster. I think DXOMark is a fine effort to objectively quantize image quality between cameras. What I miss is offsetting the results with the amount of light reaching the sensor at varying focal lengths determined by the maximum aperture. If data could be collected about this and combined with DXOMark result some truly interesting comparisons could be made. Personally I'd love to see high-end compacts compared this way such as Canon S90/S95, G10/G11, Pana LX5, Nikon P7000 and Oly XZ-1.
    If anybody owns one of these cameras and wouldn't mind writing down max aperture as you go through the zoom I would be thankfull. In case this info is'nt displayed it could be extracted from EXIF data by taking a series of shots in aperture priority, taking a shot at every zoom step.
     
  8. BBW

    BBW Administrator Emeritus

    Jul 7, 2010
    betwixt and between
    BB
    RoadToNever, thanks for your first post! If you have a chance please stop in and introduce yourself in the Welcomes and Introductions forum. It can be short and sweet or long and involved.

    Now back to the technical discussion at hand.:smile:
     
  9. RoadToNever

    RoadToNever New to SC

    5
    Feb 8, 2011
    Sweedinn
    I just did!

    Now, check out this sweet find:
    10.33E4?OpenElement&FieldElemFormat=.
    Source: Digimanie - Samsung EX1: p

    Now only data for Pana LX5, Nikon P7000 and Oly XZ-1 is needed.
     
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