Originally posted by kvetcha Depends on whether you're using a Mac or Windows PC, but on Windows copy the files to:
C:\Users\[USER_NAME]\AppData\Roaming\Adobe\CameraRaw\LensProfiles\1.0\Downloaded
...then restart Lightroom. The lens profile will be located under Make: RICOH.
Yes this does really work. Thank you very much. A little extra clarification:
I'm using LR 5.7.1 and Windows 7.
I had to make new folder "1.0" and then "Downloaded" in the above directory. Then copied the Irix LCP file into "Downloaded" directory.
Restarted LR and bingo Irix comes up as a lens type in the develop module.
Because the above pathway is hidden, its found by typing %AppData% into Start search box.
PS What a great lens!