According to the AOHC magazine "SPOTMATIC" n�33, page 15, Reflex Pentax
1952-2002 by Dario Bonanza:
Z-20 and Z-70 have been sold in Japan with panorama features only
(Z-20p/1993, Z-50p/1995)
I read too a MF body, industrial version of ME in half-format (18x24mm)Michel
