Comments about Sunpak Sunpak PZ40X II, Power Zoom Digital Flash for all Nikon TTL, D-TTL and i-TTL Cameras, Guide Number 120, ISO 100/Feet @ 80mm Setting - Black:
Works well in iTTL mode on Nikon P6000 and D90.
Also works in manual mode with a Fuji HS10.
Need to jiggle it a bit to get it to seat properly with the Nikon hot shoe. On the D90, the built-in flash interferes with the tightening ring of the Sunpak flash.