RF-27Pro2 RF4 Trinocular Stereo Microscope, 10X/23 Adjustable Eyepiece Lens, 6.5X-55X Magnification Trinocula Stereo Microscope With B3 Base, 6.5X-55X magnification times 260*380mm large base microscope,0.48Pro CTV display synchronous zoom, new dust microscope, effectively isolate dust, extend service life!