Nikon DIAPHOT 300 - Page 8

2. System Components (Left-hand)
Condenser
refocusing stopper
Condenser mount rotation clamp screw
Condenser holder
Module
Condenser turret
Annular diaphragm
centering screw
Condenser lens
Objective
Revolving
nosepiece
Side port
Coaxial coarse/fine
focusing knob
Refocusing stopper
Light intensity control dial
Condenser mount
Condenser centering
screw
System condenser
turret unit
Bertrand lens
focusing screw
Eyepiece tube port
Front port
Figure 1 -2
2