Hi John , I reguarly use my 60mm f/355mm Takahashi FS60C for lunar viewing and its awsome
. easily takes 150x + on good nights .
I could imagine the ZS66mm being as good .
I like mine because its mounted on a GSO/Astrotech alt az mount and its out and doing it in the time it takes to walk out side , easy as that .
Here is the moon thru mine using my HTC phone hand held at my 8mm TV Radian, to give you an example
.
Brian.