Nikon SMZ1500 Instructions Manual page 22

Fix the P-FMD focusing mount with the
7
zooming body and P-OTR double
nosepiece to the pillar. (Same as step
in II "Assembly" on p.10)
Screw the objective into the P-OTR
8
double nosepiece.
* Attach the supplied Tool ring on top of
the P-FMD focusing mount to hold the
Clamp tool.
20
4
Clamp tool
Tool ring
Objective