If you're on a budget, and you can stand to reroll 120 on to 620 spools, an old Kodak Vigilant, or Monitor, or Six-Twenty can be had for under 25 bucks, are very sturdy, and can be gotten with the f4.5 Anastigmat Special. Very good glass. later versions with the little L in a circle on the lens surround are single coated. I have one of these and just posted on how impressed I am with it.