The dimensions of the Arri LPL are interesting. The LPL lens mount has a
Flange Focal Distance of only 44mm and a throat diameter of 62mm.

That should make it quite easy to fabricate adapters to allow the use of
a range of unmodified old 35mm stills lens on the Arri LF if that is
your inclination. Stock Leica R and manual Nikon lenses should work but
it would still be very difficult to use Canon EF mount lenses.

All the best
Steve

Steven Morton FRPS
Scientific Imaging
Monash University
Melbourne
Australia