Model  DSC520  DSC522  DSC524  DSC526  DSC528  DSC530  DSC532
Image  Erect            
Magnification  20X  22X  24X  26X  28X  30X  32X
Objective aperture  34mm    36mm      38mm  
Field of view  1°20'            
Minimum focus  0.3m            
Multiplication constant  100            
Additive constant  0            
Compensator range  ±15'            
Compensator setting accuracy± 0.8"  ±0.6"      ±0.5"    
Sensitivity of bubble  8 ' /2mm            
Horiz. circle reading  1° or 1gon            
Instrument weight  1.50kg            
Tripod  M16 or 5/8"