I too have the same issues with XF56 1.2. I am taking approx. 7-8 shots to get 1 sharp with the camera at the same settings? I am using portrait focus with eye detection on, It is me who is not doing something as the camera takes the same shot at the same settings!! I shoot mainly indoor with natural light and I am always struggling to get pin sharp photos, when focus is missed it looks like my ISO is 12000 or higher? What is the minimum shutter speed I should be using handheld (although I am getting some in focus??)
Here is a link to a couple of in focus photo's I took this weekend:
https://500px.com/photo/202366213/b-w-portrait-by-jamie-morton?ctx_page=1&from=user&user_id=19297835
https://www.flickr.com/photos/142235583@N04/33233690971
Any feedback on how to solve my issue will be most welcome.
Jamie