IIRC the normal lens for a medium format projector is 150mm. For the PCP80 they also had I want to say a 250 or 300mm lens and then a wide-angle like a 75 or 80 for use in rear-projection setups where there might not be that much space. I'm pretty sure those lenses were proprietary to the Hassy projector, which had perspective control features (thus the PC in the PCP name).