Just recently acquired one of the latest versions of a Zeiss Box Tengor. Very cool thing - I love it that it takes 6x9! It is in pretty decent condition, and the shutter appears to be working fine. Has anyone here used one of these recently? It looks like the shutter options are 1/2 second and bulb, and we have to scale focus. Not expecting much from it, but it seems a little fun to use. Any tips on usage? I am trying it out for the first time this weekend and will try to post results. Thanks & regards.