Olympus BHM microscope.
Transmitted light illumination. Trinocular head with Nikon 10X HKW Eyepieces.
Included objectives:
Olympus MSplan 10X/.30 NA inf./- f=180
Olympus MSplan 20X/.46 NA inf./0 f=180
Olympus MSplan 50X LWD (Long Working Distance)/.60 NA
inf./0
f=180
Vickers 3.5X/ .06 NA inf./0
Vickers 70X/ .70 NA
System in good condition. Optics are clear.