Olympus ACH N 20x/0.40 P Polarized Light Objective – Strain-Free Microscope Lens

Achieve precise polarized light microscopy with exceptional working distance, featuring

The Olympus ACH N 20x objective is specifically engineered for polarized light microscopy, featuring strain-free optical construction essential for accurate analysis of birefringent materials combined with exceptional working distance for this magnification. Polarized light microscopy requires objectives manufactured with special attention to internal strain, as any stress-induced birefringence in the objective's optical elements would interfere with specimen analysis. This objective's strain-free design ensures that observed birefringence patterns originate solely from the specimen, not from the optics, enabling accurate identification of minerals, crystals, polymers, and other anisotropic materials. At 20x magnification with 0.65 numerical aperture, this objective delivers excellent resolution and light-gathering capability for detailed examination of crystalline structures, grain boundaries, and optical properties. The exceptional 3.0mm working distance is significantly greater than standard 20x objectives, providing valuable clearance for thicker specimens, special preparation techniques, or when additional experimental access is required. The achromat optical design provides reliable chromatic correction suitable for polarized light applications. The RMS thread mount ensures compatibility with Olympus BX and CX series polarizing microscopes as well as other RMS-threaded platforms. Factory-new condition ensures optimal performance and reliability for demanding geological, materials science, and industrial applications requiring precise polarized light analysis with extended working distance.

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