Olympus MPlanFL N 2.5X Epi Objective | 0.08 NA, Infinity Corrected

The Olympus MPLANFL 2.5× Reflected Light Objective is a versatile, high-performance objective designed for multi-mode research microscopy applications. As part of Olympus's Plan semi-apochromat series, this objective combines low magnification with compatibility across multiple imaging techniques including brightfield, differential interference contrast (DIC), fluorescence, and polarization microscopy, making it an essential tool for comprehensive materials characterization and research applications.

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 large specimens or for applications requiring a comprehensive overview of the sample.

The multi-mode capability of this objective makes it exceptionally versatile for research applications. Use brightfield for standard observation, DIC for enhanced contrast of transparent specimens, fluorescence for labeled samples, or polarization for analyzing birefringent materials — all with the same objective. This versatility eliminates the need to change objectives when switching between imaging techniques, streamlining your workflow and ensuring consistent positioning.

The MPLANFL optical design ensures flat-field imaging with minimal distortion from center to edge, while the plan semi-apochromat correction delivers excellent color fidelity and chromatic aberration control. This combination makes the objective well-suited for both visual inspection and digital documentation across multiple imaging modalities.

With a working distance of approximately 10.7 mm, this objective provides generous clearance for specimen handling while maintaining excellent optical performance. Compatible with upright infinity-corrected research microscopes via standard RMS thread mount, this objective integrates seamlessly into materials science, geology, and multi-modal research workflows.