Note: I reposted this here because it was previously in the wrong category.

I was looking at some Busch Pressman Model D's and some have a RF/VF on the top called a View-focus.
I wondered if this rangefinder is camed, or is it infinitely adjustable, like a Kalart? What is the adjustment procedure (if there is one)? I Have searched and searched but haven't found a definite answer

Thanks,
Brandon

I, too, have wondered about the Busch "Pressman D" rangefinder -- for more than four decades! It had a fine reputation, back when. I agree with you that very little has been published on it.

Here's a site that may be a starting-point:

http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=005Cec

The author, who posted the entry in 2003, said that he has the "Vue-Focus" manual and was prepared to supply a copy at nominal cost.

From his summary, it sounds to me as though the RF is adjusted for a specific lens, like the Kalart rangefinders, and does not use an interchangeable cam. He suspects that the adjustment may be limited to a range of 90 to 210mm.