The dumpy level is an optical instrument used for surveying and levelling operations. It comprises of a telescope tube, firmly held between two collars and adjusting screws. The complete instrument is staged by the vertical spindle. The telescope placed on the dumpy level can be rotated amongst the horizontal plane.
TELESCOPE
Length : 228 mm
Magnication : 20X
Effective Aperture : 34 mm
Field of View : 1 degree 5 '
Shortest Focussing Distance : 1.5
MStadia Ratio : 1:100