Originally posted by Ausable I hadn't noticed this issue until just recently. ON1 Photo Raw (2023 and 2021) doesn't recognize the name of the HD Pentax-DA* 16-50mm f/2.8 ED PLM AW lens, although it does recognize the names of all my other lenses. Pentax's DCU-5 recognizes the lens' name in RAW image files, so I am puzzled by ON1's behavior. ON1 does read the lens' focal length and the other EXIF data in a RAW image file.
Thoughts?
As far as I know, the database of lens information that ON1 uses is maintained by a 3rd party, not by ON1. It's up to that 3rd party to generate updates and I've heard a lot of complaints about the speed with which it gets updated. I have heard complaints about missing mirrorless camera lenses, as well as newer DSLR lenses such as your example, that are missing from the database primarily because the maintainer is so far behind.