I am using RawTherapee 5.8 on a Windows 10 machine. I recently took a number of photos for a project in NEF (Nikon raw) format. When I started reviewing them in RT, I was getting concerned as they appeared blurry. After finding them all like that, I opened one of them just using the Windows default Photos program and was relieved to find that the image had the expected sharpness. Same for the rest of the images and they opened sharp in other programs as well. The issue is not present when opening JPEG images in RT.
There was a recent thread on this topic:
RAW preview in Editor window is blurry
but I’m not sure I understand the discussion there for one simple reason - I have been using RT fairly extensively with NEF images and have not previously encountered this issue so a “that’s just the way it is with RT” type of explanation would not seem to apply. A major criterion when selecting images in the browser is their sharpness and that’s hard to do when they all appear blurry.
I don’t recall changing any RT preferences but if I accidently did that to cause this change in the program, which preference would it be? In another thread I came across a suggestion to check the Pseudo-HDPI mode in the Appearance preference but that made no difference.