Olympus MPLANAPO 2.5X Reflected Light Objective

The Olympus MPLANAPO 2.5× Reflected Light Objective represents the pinnacle of low-magnification industrial microscopy optics. As a plan apochromat objective, it delivers the highest level of optical correction available, combining perfectly flat-field imaging with exceptional chromatic aberration correction across the entire visible spectrum. This makes it an essential tool for applications requiring accurate color reproduction, precise measurements, and publication-quality imaging.

At 2.5× magnification with a numerical aperture of 0.08, this objective provides an extra-wide field of view that is ideal for initial specimen survey, large-area inspection, and capturing context before zooming in to higher magnifications. The low magnification combined with excellent depth of field makes it particularly well-suited for examining specimens with significant surface relief or for applications requiring a comprehensive overview of the sample.

The plan apochromat design ensures that chromatic aberration is corrected for three wavelengths (red, green, and blue) and spherical aberration is corrected for two wavelengths, delivering images with exceptional color fidelity and sharpness. The flat-field correction ensures that the entire field of view is in focus simultaneously, from center to edge — a critical advantage for digital imaging, photomicrography, and quantitative analysis.

With a working distance of 10.7 mm, this objective provides generous clearance for specimen handling while maintaining the superior optical performance expected from a plan apochromat design. Compatible with Olympus industrial microscope systems via M26 thread mount, this objective integrates seamlessly into metallurgical, semiconductor, and materials science workflows.