Hi. I'm searching for buy lenses for my first 4x5 camera. I recently discover that schneider and rodenstock made lenses for other brands like Calumet or Sinar. Because I have low budget I'm trying to look for deals on ebay. This lenses are probably less know, so more posibilities to get them with cheaper price. So my question is which other brands have lenses made by schneider and rodenstock? Thanks