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traveler6666
Known Participant
February 6, 2017
解決済み

Canon G7X II raw files are constantly 1 to 2 apertures too dark in lightroom

  • February 6, 2017
  • 返信数 3.
  • 1395 ビュー

This is related to the latest LR version 2015.8. This is not a problem of the camera since jpg are not underexposed. This problem occures mainly when shooting outside with a lot of sun and contrast and using the D+ setting of the camera.

    このトピックへの返信は締め切られました。
    解決に役立った回答 Jao vdL

    traveler6666 wrote:

    Thanks for the many Replys. So I guess the raw converter has to be fixed, as RAW files with the D+ feature work fine for RAW files from the D5III, 7DI and 7DII.

    It should not work either for those cameras. My guess is that they underexpose by a smaller amount as they have more headroom to start and so you might not notice, but raw files shot in any of the dynamic modes on any camera will come in too dark in Lightroom. It simply does not read this setting at all.

    返信数 3

    Just Shoot Me
    Just Shoot Me
    Legend
    February 6, 2017

    As mentioned above. Put simply RAW is RAW and LR doesn't honor 99% of In Camera settings for RAW files.

    T
    traveler6666作成者
    Known Participant
    February 6, 2017

    Thanks for the many Replys. So I guess the raw converter has to be fixed, as RAW files with the D+ feature work fine for RAW files from the D5III, 7DI and 7DII.

    J
    Community Expert
    Jao vdLCommunity Expert解決！
    Community Expert
    February 6, 2017

    traveler6666 wrote:

    Thanks for the many Replys. So I guess the raw converter has to be fixed, as RAW files with the D+ feature work fine for RAW files from the D5III, 7DI and 7DII.

    It should not work either for those cameras. My guess is that they underexpose by a smaller amount as they have more headroom to start and so you might not notice, but raw files shot in any of the dynamic modes on any camera will come in too dark in Lightroom. It simply does not read this setting at all.

    F. McLion
    Community Expert
    F. McLionCommunity Expert
    Community Expert
    February 6, 2017

    About the same applies to Nikon D-Lighting - thanks elie-di for the detailed explanation

    If you shoot RAW, I suggest to turn off all of these gimmicks.

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      elie_dinur
      elie_dinur
      Participating Frequently
      February 6, 2017
      The way the D+ setting works when the camera is processing a jpg is that the image is intentionally underexposed by a stop by setting the ISO amplifier one stop lower. Then a tone curve is applied that raises the darkest tones by around a stop, the medium tones by roughly a half stop and the brightest  highlights not at all. thus canceling most of the underexposure. The result is that the highlights are more protected against clipping (blowing out to pure featureless white) and retain more detail, but there is also the strong chance that noise in the shadows will be more visible. This can only be done during the processing of an RGB (jpg) image, so when the camera is outputting a CR2 Raw file it merely puts a flag on the file. If the Raw conversion is done in Canon's DPP, the flag is seen and the appropriate curve is applied, but third party converters - like Lightroom - don't see the flag or don't know what it means. And thus the image remains dark until you manually do something to brighten it with the Basic Panel controls or the Curve Editor.
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