Type : Galilean-Type Binocular Microscope. Magnification Changer : Continuous Zoom by drum rotation. Eyepieces : 12.5X wide field. Total Magnifications : 5X~30X. Field of View : ø49~9mm. Pupillary Adjustment: 50~75mm. Focus Distance : F=175mm. Diopter Adjustment : -6D~+5D. ILLUMINATION: Filters : Cobalt, Blue, Heat absorption, 1/2ND. Light Source: 15V150W Halogen. Lamp (L0960H1) with cold mirror filter equipped. Brightness(max): 135,000Lux(ø6). Coaxial illumination field : ø50mm. VERTICAL FINE CONTROL: Model : Electric type,using a motor. Adjustment of focus: 40mm. Focusing speed : 1.3mm/sec. Microscope inclination : 0°~30°. Model : Floor placement type,stepping type. Weight : 4kg.