Does anyone have an idea how I can identify photos made in serial mode with a Pentax K100D? Other cameras have a "SequenceNumber" in the makernotes, but it looks like PEF-files don't. I organize the photos by time and therefore 2of3 photos in the same second are deleted. The easiest way to avoid this would be to put the sequencenumber after the second, but this is missing. Any ideas? Thank you!

Phil, I am using a bash script to change the filenames. I can't tell you in a few sentences, which conditions result in which filename. Assume I need a unique number, which is yyyymmddhhmmss(+sequencenumber, if there was a rapid sequence). So yes, I am renaming the files according to the date/time but I can't do it with exiftool, the conditions are too complex. Now i am modifying my script for future photos, where the original filename of the camera still exists. This could help me with my problem, but I don't like it very much to modify an original file, which would be necessary with my workflow then.

I like to write the "number-part" in the ImageNumber-filed, but this doesn't work. I use Exiftool 6.95 and executed

.

Before I checked if the tag is empty with

and it looks like the wrong tag is queried. Please note my othe posting re ImageNumber.

Of course I can send you samples, but this means a lot of mailspace for you. I use samples from raw-files (10MB), which I use and jpg-files. Please let me know, if I should send you the samples. Unfortunately, I have no webspace for upload at the moment, but I will think about it.