Finally NVSurround can be used without the fisheye effect.  LM has solved it by making special shaders which corrects the distortion.   In P3Dv4.3 : Open the Menu taskbar in P3D Go to Views Go to Manage Camera's Fill in a name for the new Camera view At the right from the list at the bottom check  "Wideview"   Set the zoom you want ( best 0.31 --> has to be higher than 0.30 ) Save as Scenario Fly without distortion ...