I finally received my Hasselblad 501c with a PM90 prism. I love the camera, hate the prism! It's way too bulky and gets in the way of removing magazines easily. So I'm planning to return the prism. I'm looking into either the NC2 45 degree prism or the HC4 right angle viewer. Both prisms are 3X magnifiers and also have eyecups which I prefer. the NC2 looks nice and simple and seems like it would be relaxing to use. The HC4 looks much smaller than the PM90 and would allow room to attach and remove magazines easier. Anyone have an experience with either or both viewfinders to offer recommendations? Also, is there much difference between 2X and 3X in the viewfinder?