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Histogram re-sizing ?


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Alex,

The short answer is yes, it is possible to make the graph taller and/or wider. However that would mean making some other group(s) of controls smaller. It may also be that making it larger would not provide any additional information. I am sure that Guylain has tried to strike a balance with the current size and placement of the controls.

In any case, my opinion is that the BYE histogram is of limited usefulness when shooting RAW images because the data is based on the imbedded JPG image pixel values, not the RAW pixel values. As such should not be used, for example, to determine the correct exposure for flat frames.

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4 hours ago, astroman133 said:

In any case, my opinion is that the BYE histogram is of limited usefulness when shooting RAW images because the data is based on the imbedded JPG image pixel values, not the RAW pixel values. As such should not be used, for example, to determine the correct exposure for flat frames.

The Histogram is indeed generated from the embedded JPG, but in any case it serves the basic purpose.  Really the only purpose is to ensure Exposures - Lights or Flats - are within the "Linear portion of the Sensor's Response Curve" (which for modern DSLRs is all but the last fractions near the Clipping Points).  This has been discussed here and on CN and Astronomy.net and in some of the AP Imaging eBooks.

For most BYE/BYN Users, all they need to see is 1) that the Peak is away from Left Edge; and 2) that there is no evidence of Clipping.  Beyond that, the "shape" of the Curve can be of some interest if one is looking to compare a current Exposure against previous ones.

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