... interest in biological , cheap , good quality , Phoenix binocular stereological microscope XTL -165 - VB continuous variable 45X/180X ... Trinocular : 45 ° tilt, pupil distance :55-75mmDiopter : Binocular diopter adjustment range : ± 6 Stand: stand arm bracket (V ... The solid circle represents the standard configuration . Phoenix binocular stereological microscope XTL -165 - VB continuous variable 14 ...