I would like your opinion on this issue, I have a Zeiss FF 450 plus that needs an upgraded digital sensor and electronics. I have quotes from Zeiss updated visupac plus sensor and OIS WinStation 5000. I was also looking into Escalon Sonomed. we are also in the progress of installing Merge as viewing suite for the department. What are your thoughts/suggestions? Do any of you have a FF450+ with either OIS or Escalon sensor? Look forward to hear from you and ask some more Qs Gianfranco Ventura Ophthalmic Photographer Loyola University Medical Center 2160 S. First Ave Maywood IL 60153 Tel (708) 216-2506