Hi all, I'm new here, and apologies if this is way off topic. I just got an old Sapphire Film Recorder, which seems to function well, but when I got my first roll of test film back from the lab it was out of focus. I think I've figured out how to adjust the lens, but I don't see any way to focus on an image - any tips? I did see a brief mention of this device in a forum topic here from a few years back so hopefully I'm not totally off base. Thanks much, Scott