LOMO Microscope Objective - Achromat 40x0.65, Phase, Dark

Magnification: 40x
Numeric aperture: 0.65
Immersion: none
Tube: 160mm
Focal length: 4.35mm
Work distance: 0.55mm
Parfocal height: 33mm (RMS)
Correction : Achromat
Spectrum range: 400-700nm
Research method: Darkfield
Contrast method: Phase Contrast