Well, this isn't a mod, just a quick tweak to disable that horrible effect while using witcher senses. The FOV and the effect when using witcher senses/focus always made me very motion sick, so I took a look at the ini files and found a way to turn off this horrible effect.
Just go to bin\config\base\gameplay.ini. Open the ini and look for this lines:

MotionSicknessFocusMode=false

now set it to

MotionSicknessFocusMode=true

There you go, that blurry effect on the edges of you screen is gone, no more motion sickness and now you can even use witcher senses as a tool for better exploring your surroundings since it still does zoom in.

If you liked this little tweak, download the attached Readme file and endorse.

Cheers, mateys ;)
CaptainCrunch