for sale is my apo sironar digital rodenstock 5.6/90mm in copal 0 shutter, working as it should. I used it on my betterlight system (full coverage with margins to shift) and a phase one H25. Small cleaning marks on the back of the rear lens element (see pictures), just mentioning it in order to avoid complaints: not affecting the image. Price is €550 net to me. I am located in the Netherlands.