I have thoroughly profiled a manual prime lens: Samyang 14mm f2.8. on a Canon full frame SLR.
Adobe Lens Profile Creator has split the calibration images into unexpected groupings which is reducing the quality of the results.
Here is a screenshot:
Because it is a manual lens, only the camera data and shutter speed were initally in the EXIF data.
I added the lens maker, model, focal lenth etc into all of the DNG files using ExifToolGUI
I then went into the individual aperature sets and added the correct aperature number.
When I loaded this into ALPC it recognised and interpreted most of the EXIF data correctly with the exception of not reading the lens name data for f11 and some f2.8 shots.
Also the f11 shots were taken the day before the others.
I have checked and rechecked the EXIF data for the images, and the lens name and data is consistent across all images (other than the f number of course).
Whether I start a new project, or delete the groups / images and reload, I end up with exactly the same arrangement as the screenshot.
I'm looking for ideas or information about how the groups are created to help me overcome this issue.
LCP file appending data
At completion of profiling of each focus group, I'm asked to save a .lcp file.
If I select the same file name for each focus group, will I end up with a profile containing all of the focus lengths that I calibrated, or will the data overwrite the existing data?
For the second of the split set of f2.8 data, I am given the option to append the data to the file produced for the first set of f2.8 images. I doubt that this will produce the quality of results as if the modelling had been performed on the full set on images from the start.
I have extracted all of the EXIF data from all of the images used in the calibration of this lens.
Here is the full EXIF data in an excel 2010 document. I have removed or hidden the data where it is identical for every shot, E.g. camera serial number, and grayed it out when it would be expected to be different for every shot such as file name and timestamp.
The main difference is that the f11 images were converted to DNG with DNG convertor and the others were converted with Adobe bridge at the time they were imported.
Rows 93-108 are given a different group.
ALPC first looks at the Camera Make, Camera Model, Lens Make, Lens Model, LensID and LensInfo first to sort images by camera and lens. Then it looks for focal length/aperture to further sorted into set. You need to sort them by the focus distance manually. When the auto sorting method does not work for you, you can always create groups and sets manually and drag-n-drop images into sets using the ALPC.
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