Leitz 14121 Ball Head lens mount_Mamiya 7 Include two 20mm tubes

Include two 20mm tubes

The E2 is a short extension tube (14mm) with a threaded plunger for lens stop-down control

but they wind into a proprietary Robot cartridge (included) as you shoot

this is the best 110 system ever made: it's easy to handle

If you don't mind a bit of extra exercise when you're changing apertures

Leitz 14121 Ball Head lens mount_Mamiya 7 Include two 20mm tubesThis Leitz 14121 ball head is in decent cosmetic condition, with notable surface marks and scuffing not lovely. But function is good, with good locking action, a reversible tripod mounting base (to accommodate 1 4" or 3 8" fittings) and a 1 4" camera thread.