12842km
12742km
12724km
12785km
0.1785D2
0.0857D2
0.0785D2
0.0787D2
Dumpy level
Modern level
Wye level
Auto level
Two level screws
Three level screws
Four level screws
Six level screws
Turn the focusing knob
Adjust the levelling screw
Adjusting screw cover
Setting of the tripod