Been there done that. Yes, it will cover 11X14 but not well. Yes it will go in a Copal or Compur 3 but memory says something has to be trimmed slightly. One benefit of shutter mounting is it becomes f6.3. That said, they aren't popular or valuable because the diminutive 270 f9 G-Claron covers more, is sharper, and doesn't need a $350 shutter.