Parameters al24 al32 a-32standard deviation per kilometer double - run 2mm 1mm 1.5mmimage positive image positive image positive imagemagnification 24x 32x 32xclear objective aperture 36mm 36mm 36mmfield of view 1o20 1o20 1o20shortest focusing distance 0.4 m 0.65 m 0.4 mstadia multiplication constant 100 100 100stadia additive constant 0 0 0circular bubble precision 8 2mm 8 2mm 8 2mmhorizontal circle 360o 360o 360ocompensator type air suspension -damping air suspension-damping magnetic suspension-dampingworking range 15 15 15setting accuracy 0.3 0.3 0.3screw thread m16 or 58 m16 or 58 m16 or 58.