The Rentia IIIC big has a very useful rangfinder with lines for the 35 and 80 lens. Very compact. I carry mine when I am lugging around 4X5. It is somewhat odd in many ways, film advance in the bottom, need to set the film counter, the shutter and F stop are linked and diffuct to overide. The 50 mm is very good, the 35 and 80 are large and need to be carried a bubble case and dont link to the rangfinder, I dont bother to carry. My meter is still active after 50 or so years. I got mine in 1966, I think it was used as a gift from my aunts.