LOMO Microscope Objective - Achromat 20x0.40, Phase

Magnification: 20
Numeric aperture: 0.40
Iris diaphragm: No
Immersion: None
Parfocal height: 33mm (RMS)
Work distance: 1.70mm
Focal length: 8.4mm
Correction : Achromat
Spectrum range: 400-700nm
Research method: None
Contrast method: Phase Contrast