This electric work table is made of imported materials and absorbs the foreign advanced technology. It is easy and convenient to move the table, low noise, stable and large range for up and down (600 mm- 820 mm).
Total: 23 pieces including one red filter lens. Diopter(Δ): 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45, 50.
Keep your eyes straight ahead and focus on distant still objects. Place the gap on the nose as close to the eyes as possible, then find the middle and read the line closest to the middle of the pupils.
For sale is a preowned Nikon 28D lens for indirect ophthalmoscopy. The lens is in near mint condition. Please note the faint inscribed initials on the metal frame depicted in the photos. The lens comes in the original case, which is in good condition, missing the front fastener strap. Lens condition: Glass: 10/10 Metal frame: 9.5/10 Case: 8/10 Tags: Volk optical ocular instruments clear coat double aspheric made in Japan ophthalmoscope
It comprises the highly integrated computer, optics, machinery and electronics systems. Threshold test model. Upper Threshold test model. Blind spot monitoring ,eye position eye position deviation alarm,eye deviation curve.
Features : Type:Microscope achromatic Objective lens Magnification: 4X/10X/40X/100X Mounting size :20.2mm Standard RMS thread Material:Precision metal core Tube length : 160mm standard thickness of cover glass 0.17mm for Biological microscope Detailed information : 4X :Numerical Aperture (NA) 0.1; working distance 18mm 10X: Numerical Aperture (NA) 0.25; working distance 7mm 40X : Numerical Aperture (NA) 0.65;working distance 0.53mm 100X :Numerical Aperture (NA) 1.25 ;working distance 0.13mm
New (open box??)... Excellent!!!!
