Hi,
I tried the create a custom sort in a contact sheet containing raw and jpeg files from 20 years ago. I'm trying to sort the mess of backups I have so I'm diving into the EXIF metadata trying to determine if I have the "right" photos i.e., based on their metadata. In the process I've been trying to sort and rename the consolidated photos. I realised that in PM I can create a custom sort on what I think might be the right metadata, namely, fnm4 and/or fnum. It now might not be the thing I'm after since I see that in some of my photos the fnum contains: 1585854, and in others it's: 5854. I determined then that fnm4 might be the better option since it is just the last 4 digits i.e., 5854, but the custom sort that I created on fnm4 seems to be sorting using the fnum value rather than the fnm4 value. I tested this by creating 2 custom sorts, one using fnum and the other using fnm4 and the sort order is exactly the same.
I attached a short screen capture showing what I'm experiencing. I hope it's clear enough to be understood.
Thanks
Michael