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  • SFA
    C1 offer lens correction using correction data supplied for the lens via the camera (usually manufacturer's correction data) or Phase's own data from their own lens testing. Some cameras and lenses may have both available.

    Correction will normally mean distorting the data positioning in some way by "moving" pixels around and so the resulting "image" needs to be re-cropped - or left in its distorted form for the user to crop in the way they prefer.

    The result may or may not exactly match the adjustment made by the manufacturer and applied to their jpg output - including the jpg example embedded in the RAW file.

    The writer makes an interesting point about "extra pixels" but only, one imagines, if image distortion is not something one is trying to eliminate. I think most of the cameras that rely on software adjustments to deliver solutions of lens limitations will probably be capturing more pixels than they normally present to the user as part of the in-camera processed image. This is not really the case with the "traditional" dSLR design but is a requirement for the more recent systems new to the market where both size and cost restrictions require significant digital tweaking of images that are not considered to be so essential in the dSLR world.


    Grant
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  • Stefan Hoffmeister
    [quote="SFA" wrote:
    C1 offer lens correction using correction data supplied for the lens via the camera (usually manufacturer's correction data) or Phase's own data from their own lens testing. Some cameras and lenses may have both available


    Could you provide insight for the m43 camera system, please?

    EXIF data from m43 cameras appears to have extensive lens correction data embedded in the EXIF - at least for Panasonic and Olympus cameras. I would be intrigued to learn whether Capture One makes use of this information, and as of which version this would be supported.
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  • SFA
    [quote="daffy" wrote:
    [quote="SFA" wrote:
    C1 offer lens correction using correction data supplied for the lens via the camera (usually manufacturer's correction data) or Phase's own data from their own lens testing. Some cameras and lenses may have both available


    Could you provide insight for the m43 camera system, please?

    EXIF data from m43 cameras appears to have extensive lens correction data embedded in the EXIF - at least for Panasonic and Olympus cameras. I would be intrigued to learn whether Capture One makes use of this information, and as of which version this would be supported.


    Daffy,

    Sorry, I'm not an M43 user so it's not something I have looked into but from what I recall looking at M43 in the early days the software in the camera has to be deployed to get anything reasonable out of it in most cases so I would expect the default is to make use of whatever the camera offers.

    The Release Notes

    http://downloads.phaseone.com/9c7cb7b7- ... (Rev%201.2).pdf

    lists all supported cameras and lenses that have been specifically assessed by Phase. Assume that anything supplied by the camera is also available from the RAW file.

    HTH.


    Grant
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  • Stefan Hoffmeister
    Based on inspection of RAW files I have (from Olympus and Panasonic m43 bodies) I would agree with your assessment that the cameras store all information relevant for processing in the EXIF section.

    Problem: Capture One ignores all this massively valuable data.

    I do appreciate that Phaseone make an effort to build something "better", by providing custom profiles. I'd really appreciate it, though, to have correction data for any and all lenses, taken from the EXIF, as an initial baseline, upon release of the lens.
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  • Permanently deleted user
    Daffy:

    What you say sounds to me that there may be some proprietary solution happening. If so, it's probably protected so P1, to support RAW of such cams, need to use a workaround to get to similar results. Of course wild guessing here.
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  • SFA
    [quote="daffy" wrote:
    Based on inspection of RAW files I have (from Olympus and Panasonic m43 bodies) I would agree with your assessment that the cameras store all information relevant for processing in the EXIF section.

    Problem: Capture One ignores all this massively valuable data.

    I do appreciate that Phaseone make an effort to build something "better", by providing custom profiles. I'd really appreciate it, though, to have correction data for any and all lenses, taken from the EXIF, as an initial baseline, upon release of the lens.


    That would be a surprise - what leads you to the conclusion?

    If you go into the Lens Correction tool what do you see for the Profile setting?

    In the top right corner you should see 3 dots. Click on that to see whether lens correction is disabled.

    I think it has always been accepted that the compact cameras that first arrived a few years ago were only possible because in-camera software became viable (the cameras could be given enough compute power) to fix the limitation of lens design physics and allow smaller faster lenses to be manufactured than was previously possible.

    Since then costs have been controlled across most of the more affordable photographic equipment ranges by fixing in software rather than in the glass. No problem so long as it works and the users as satisfied with the results.


    Grant
    0

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