Surprises me to be honest, as I had success with the MPCC on an 80mm Lomo triplet a while back. Yes the Televue worked as well, but no better (in my case), but what the MPCC really did was that it kept the native focal length, whereas the TV reduced as well as flattened, something I didn't want.
I did have to jigger about with the MPCC spacing, but not overly.
Gary
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