I posted earlier regarding the ability to select and apply lens profiles manually, but meanwhile started looking for a temporary "work-around" using the automatic corrections... however, when I open a raw file, the distortions are not corrected, or affected at all. Above the image, it shows the camera model and lens; "Nikon D600 (14mm f/2.8-1.4)", and above that it shows "RAW ISO100 f11 14mm 1/2s"... so it has the lens specs correct, but no mention of the Samyang brand (this lens is in the lensfun list that I found elsewhere in this forum: http://lensfun.sourceforge.net/lenslist/ ). FWIW, "Apply lens corrections" is on in the "develop assistant". Do profiles need to be downloaded and installed separately? Where are the lens profiles kept?