Okay folks. I got a baby Al-Vista (takes 120 film) a couple weeks ago. The lens look fairly clean. The four-speed spring shutter seems seems to work. The inside looks pristine except for a replacement red window and the outside isn't too bad. My questions are as follows:  What format does this really produce?  It seems like I'll expose some film when I first load it. Is this correct?  What numbers do I watch for in the little red window?  Any guesses as to what the shutter-aperture combos are? It's a fixed aperture, obviously, but I have no idea what to guess for an equivalent shutter speed for each setting.  It seems like the wood film "rails" are pretty rough. It looks like really cheap, poorly dried pine, painted black. Is this a problem wth the film?