How can I create a smart collection of Pixel Shift images ?

Question

For the last 6 years, I have been the owner of a Pentax K-1 II DSLR .

When I use the Pixel Shift feature, it records 4 images in a single DNG file.

LRc is able to process these files and combine the 4 exposures, as long as there is no motion.

If there is motion, it is preferable to use an external processor such as Pentax Digital camera utility or RawTherapee.

My problem is that I don't see any way to distinguish which images in my catalog are Pixel Shift, and which are not. I can filter by camera model and file format (I only shoot in DNG anyway), but that does not narrow it down enough.

I checked the metadata of one of my PixelShift files using exiftool. It showed the following field :

[Pentax]        Quality                         : RAW (pixel shift enabled)

Is there any way to create a smart collection that filters based on this metadata ?

I checked using "all plug-in metadata" for the word "shift" and it didn't match any photo.

johnrellis · Accepted Answer

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@madbrain76,

The Any Filter documentation only lists explicitly fields from the catalog that LR directly supports. But Any Filter also lets you search any of the thousands of additional fields returned by Exiftool.

The field you're interested in is stored in the manufacturer-specific MakerNotes:PixelShiftResolution, and you can search for it with Any Filter's ExifTool Field criterion:

(Tip: Click the magnifying glass to search for field names quickly.)

Since ExifTool can only search about 100 - 200 photos/sec, you can speed up Any Filter's searching of ExifTool Field considerably by restricting the search to a smaller set of photos, e.g. by using the File Type criterion.

Another tip: When using ExifTool to poke around inside a photo, use the options "-a -G". The -a option will show all the fields from different metadata sections that happen to have the same name, and -G will prefix the name with the metadata section it's coming from, e.g. MakerNotes or EXIF.

Lumigraphics · Answer

If Anyfilter doesn't work, you could use EXIFTool to search for that tag and write a keyword that could be searched and filtered with Lightroom.

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