I take it you have rendered that image? But you still see the same and not "streched" as it is in the sample image.

Usually the focal length of the camera should fix this and allow the "streching" of the lens. But this would put the angles out and they would no longer appear at 90°.

Try This Link: https://www.ozoneasylum.com/11862 and https://www.highend3d.com/boards/inde...owtopic=214964

It looks to me Maya does not/or cannot support it, but Max does as Max has a background in visualisation and arcitechture, where maya does not.