Frequently asked questions (FAQ)

Yes, that is perfectly ok.

The BIA file or Black Image Acquisition as I call it will be taken by your camera with shutter speeds slower than 1/30 of a second. It will be taken after the shutter has closed to get a dark frame at a similar time and with in the same circumstances. The dark frame can then be used to fix “hot pixels” (= pixels that become unreasonably bright with longer exposures) If during conversion an accompagnying BIA file to the RAW is found it will be automatically subtracted from the image if you do the conversion with the -b parameter.

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This happens if you do one of the following things during conversion:

  1. you converted the file with the -c parameter, which is not supported in C1Pro.
  2. you converted the file without the -p parameter, so the preview image is missing and C1Pro throws in the towel.

If you didn’t do one of the things described above and still can’t open the file in C1Pro, please contact me!

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Check the two following things and change them if they are true for you:

  1. you converted the file with the -c parameter, which may not be supported in your software.
  2. you converted the file without the -p parameter, so the preview image is missing and your software needs that.

If you still have problems, please contact me!

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Try to run the conversion with the -b parameter. Omitting that parameter the blacklevels are not set and the white balance cannot be done correctly any more.

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This can easily be fixed. Read the article about sensor fixes.

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If you are not converting with the -b parameter, do so. If you are setting the blacklevels on conversion and still have magenta shadows, then your M8 behaves a little bit different to mine. The default value for the blacklevels is 92, to fix your coloured shadows you have to increase this value by converting with “-b XX" where XX is the value of the new blacklevel. Try to raise it slowly starting from 93 until the shadows are fine.
This new value is the one you have to do the conversion with in the future. Read the article about blacklevel correction for more information.

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If you are not converting with the -b parameter, do so. If you are setting the blacklevels on conversion and still have green shadows, then your M8 behaves a little bit different to mine. The default value for the blacklevels is 92, to fix your coloured shadows you have to decrease this value by converting with “-b XX" where XX is the value of the new blacklevel. Try to lower it slowly starting from 91 until the shadows are fine.
This new value is the one you have to do the conversion with in the future. Read the article about blacklevel correction for more information.

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