Quote Originally Posted by Chris Lange View Post
You are extraordinarily talented at brutal sarcasm, Mustafa.

As to the RF issue, some vert alignment can occur even in brand new cameras out of the box, for whatever reason. I've seen it in new Leicas before, as well. As for why the adjustment isn't locked from the get go, I believe it's because of the parallax compensation...
Although they both get their "movement message" from the Rf cam, the parallax compensation and Rf vertical alignment are not related. In fact quite a lot of RF cameras without parallax compensation are afflicted with vertical misalignment in the Rf; even cameras like screwmount Leicas where the Vf and Rf are entirely separate (no parallax comp either) go out of adjustment.