Virtual images in (plane) mirrors? The following image is taken from teaching physics lecture Was man aus virtuellen Bildern lernen kann (in German):

Now the cited paper claims that the left hand side is the correct picture to explain the virtual image if you look with your eyes, the right hand side is correct if you use a camera (but incorrect if the camera is replaced with the eye). In the case of a plane mirror both constructions lead to the same result. However in the case of curved mirrors they lead to different results (which is also discussed in the cited paper). Now I am a bit confused since the right picture (with an eye instead of the camera) is that one typically drawn in physics textbooks (for example  Pedrotti "Introduction to optics" p.38 or Halliday Resnick "Fundamentals of Physics" p.1140). So my question is, which picture is the correct one? Do you know further references of papers or books which discuss this problem more in detail? (I have only found this cited paper in German).
 A: Both drawings are correct for both the eye and the camera, as optically
the eye behaves like a camera. The difference is that the first drawing
shows the principal rays while the second shows the marginal rays.
The marginal rays are interesting mostly when discussing focus and depth
of field. Compared to most cameras, the eye has a very large depth of
field, and a very good autofocus system. Then, the issues of focus and
depth of field are less important for the eye than for the camera.
That's why the right picture is just slightly less relevant for the eye.
A: I strongly believe that both the images are right. Even the eyes have got lens and you can replace the whole eye with a lens and retina. It is only the way they are representing the information. The first picture is a bit deceptive, in the sense that it hides the basic principle of a point getting focused by a lens on a sensor plane. 
A: I think it isw possible that one is a cocave lens and the other is a convex lens that is also why in the right picture the angles converge
