wouldn’t it be great if you could judge sharpness of your images in lighttable mode? this mode is limited to small and medium sized thumbnails of your images, so we can deliver the required speed to browse a lot of them.
to tell whether or not you got the focus right during the shoot, we would like to look at the full resolution. the most you get out of lighttable mode will look like this:
This is a companion discussion topic for the original entry at https://www.darktable.org/2013/11/determining-focus-in-lighttable/