This microscope features both coarse and fine focus controls.
It is all metal.

FEATURES

Full size height 34cm (13.5inches)
10x wide field eyepiece with pointer
Revolving triple nosepiece with pozitive stops.
Adjustable stop to prevent slide damage
4x,10x40xR(retractabele)objectives.
3 different magnification 40x100x400
Rack and pinion focusing with coarse and fine controls and tension
adjustemenet.
Stage size 120mmx130mm with locked in clips
note
the eyepiece is not locked,15 or 16 eyepices are available
optional to increase magnification accordingly
ex:
4x15 10x15 40x15 (this will give up to 600x)
Five aperture disc diagram to control the light
Plano concave mirror
The arm is movable to accomodate the viewer position