Hi, I've been lurking here for a while, but this is my first actual post. I'm looking into buying a Rolleimat Universal enlarger for doing medium format (6x6 and 6x4.5). It comes with two lenses but they are not in great shape (fungus). The question is, does the Rolleimat accepts replacement lenses? And if yes, of which type should they be? Darkroom equipment is not easy to come by in my country (Uruguay), specially for medium format. so I'd like to get that enlarger and use it as is until I have the opportunity to change the lens for something better. Thanks in advance for any comments!