型号范围直径读出精度灵敏度抖动载重
粗调细调水平径向
7R128360°15°25mm0.5arcmin1arcmin1kg0.1kg
7R174-11360°39.6mm3arcmin1 arcmin1arcmin4kg1.5kg
7R7360°15°50mm1 arcmin3arcmin5kg2kg
7R129360°15°80mm1arcmin20arcsec1arcmin12kg5kg
7R172-2360°10°90mm1arcmin20arcsec1arcmin15kg7kg
7R150-1360°60.6mm2arcmin0.4arcmin0.6arcmin8kg1.7kg
7R150-30360°60.6mm2arcmin0.4arcmin0.6arcmin8kg1.7kg
7R171-200360°10°200mm0.5arcmin0.1arcmin1arcmin15kg
7R170-190360°10°190mm0.5arcmin0.1arcmin1arcmin60kg