RF4 PX-5 7-50X trinocular stereomicroscope with Big Base

• 7-50X optical continuous zoom objective lens, the total magnification reaches 7X-50X, standard working distance up to 100mm
• Giving dust-proof, oil-proof, temperature lens, prevents eyepiece pollution, safe and durable
• The eyepiece visual field reflection adjustment, giving a dust-proof, oil-proof, high-temperature lens, prevents eyepiece pollution, is safe, and durable
• Both eyepieces support refractive adjustment, suitable for people with different eye distances
• 7-50x continuous zoom, optical system, large magnification continuous zoom imaging, sharp without distortion, can correctly dock concave and convex objects to get full three-dimensional images