AFAIK, there are currently different cable releases for Pentax cameras. TheAll cable for Pentax from Z serie to *istD use the same electrical shema; there is tree jack:
latest only fits the *ist, *ist D, and ZX-L
- flat 3 pin for Z and MZ serie
- special round connector for MZ-S
- 2.5mm standard jeck for MZ-6/ZX-L, *ist, *ist D (and future)
I have home made cable for Z1 and just changed the jack for *ist D ... 8=))
And for advanced users: (translation form japanese Pentax-Fan)
http://babelfish.altavista.com/babelfish/urltrurl?lp=ja_en&url=http%3A%2F%2Fwww.pentax-fan.jp%2FBODY%2FistDrelease.asp
Michel
