I recently purchased a Wollensak Cine Raptar 25mm 1.9 (wonderful lens, BTW). If you own or owned this lens, do you have a recommendation for an adapter that results in the aperture and focus mark pointing straight up? I've already tried a Hawk Peng, a Rainbow Imaging and a couple of no-name Chinese adapters. The base of the lens and the C-mount screw are cast in one piece, so no adjustments there are possible. Thanks in advance!