Wondering, from other ACs or DPs out there, what you did you rig a focus motor to a periscope such as the one attached to the film camera linked here? http://www.electronic-pr.com/pr/art/new_clrmc_344sm.jpg I would do something from the lens end, but not sure what just yet. Looking for some more ideas and people with experience regarding periscopes without focus or iris built in.