... precisely what I was going to say! :) andy
Well, really should leave this one for Andy, but my guess is that your
images would be a black void with a small white disc in the center: the
rear exit pupil of the Linhof´s lens... Try opening any (empty) film
camera, open the shutter and look into it from the behind: you won´t
see any image that way.
Now, if you replace the mirror with a piece of white paper you might
come closer to what you want, but I doubt the quality would be
sufficient.
Per Öfverbeck
http://foto.ofverbeck.se