This is a review of the Schneider Betavaron 3.. .10/0.08 Zoom enlarging lens made in the 80s. The PDF file is available here ( www.schneiderkreuznach.com/archiv/pdf/betavaron_81.pdf ). There are things on the PDF that are not clear. Perhaps because of German to English translation. I will go over the important points and explain what the lens does and does not do.