Hi Jeff,
The place nearly all start with is the famed "sunny/16 rule." Basically, on a bright sunny day - noonish - a proper exposure can be had by setting the film speed on the camera at the film speed on the box (ex: asa 400) and the aperture at f/16. Hazy bright conditions you either open up the aperture one stop ( in this scenario to f/11) or slow the shutter by half (instead of 400, change to 250 or 200 - whatever your camera shows). Open shade? F/8 or shutter speed of 100. and so on. It takes a little bit of practice but in no time at all you become a pretty confident judge of light.
A small investment in a light meter will also help while you are learning, and is a good way to check your "sunny/16" observations, but should you forget to bring along the meter one day the "sunny/16" rule and your mastery of it will keep you shooting and not wasting film. Well, not due to improper exposure, anyway. I personally have many well exposed negatives of total crap, but that's not sunny/16's fault.
Good luck and have fun with your 'new' Voigtlander.
Joe