ZEISS Plan Achromat 4x for Primo Objective lens for Primovert microscope. WD = 12.0 mm. Zeiss Plan Achromat 10x/0.25na Objective Fits Primo Star. ZEISS LD Plan Achromat 20x Primo Objective.
ZEISS LD Plan Achromat PH 40x Objective Lens. Zeiss Plan-Achromat 100x Oil Microscope Objective.