I've used the FA 28-105 and 100-300 on my Z-1 since they all came out. Loved
and used the power zoom facility other than when I was trying to be more
discrete (the whining noise attracts attention even before the mirror
whack).
However, I also used them on earlier models (e.g., SuperProgram and MX)
before I went for the D. This meant that when I began shooting them on the
D, I really didn't miss the zoom capability. I also realized how much of a
battery drainer it is.
'Twould be nice to see it come back - but way down the list which primarily
includes full K & M capability as well as not having the 1.5 magnification
effect.
Larry in Dallas