61X binocular biological microscopeDetailed product description：

The limit of the spotlight on the 61X binocular biological microscope workbench is adjustable, and the limit of the spotlight is adjustable.

technical indicators

objective lens
Category: Achromatic Objective Lens
Magnification factors: 4X, 10X, 40X, 100X oil
Numerical aperture (N.A): 0.10, 0.25, 0.65, 1.25
Working distance (mm): 37.5, 7.31, 0.50, 0.26
Flat field eyepiece: PL10X/18
Mirror tube coefficient: 1.25
Total magnification: 50X-1250X
Mechanical cylinder length: 160mm
Numerical aperture (NA) of spotlight: 1.2
Coarse and micro focusing mechanism:
Focusing range 15mm
Micro movement value 0.002mm
workbench:
Lateral movement range 76mm
Vertical movement range 50mm
Focusing range of the spotlight is 20mm
The limit of the spotlight can be adjusted
Lighting source: Bromine tungsten lamp 6V12W