I have a scene with a warped plane acting as a lens. I matched the camera to viewport, but the renders look too zoomed in, and the warping effect is different than in viewport.
Viewport render:
Renders:
Note: I have tried messing with camera settings to no avail. Thank you for taking a look at the .blend file.
Your "Edited Lens" object has a Solidify modifier that is disabled in the 3D Viewport. Without solidifying this object is just a plane, and in this case everything below is treated as if it was inside a big glass cube instead of a glass pane, because the IOR refracts the light while entering the plane from one side but not exiting on an opposing side.
If you enable the Solidify modifier in the viewport, the result looks exactly like the render. So the solution will be to deactivate the modifier for rendering as well - or simply delete it. If you don't want to see it neither in viewport nor in render, what good is it for?
