Olympus PlanC N 100X Oil Immersion Microscope Objective with Iris

The Olympus PlanC N 100X with iris diaphragm is a versatile plan achromat oil immersion objective that combines high-resolution imaging with exceptional user control. The integrated iris diaphragm is a valuable feature that allows microscopists to adjust the effective numerical aperture on demand, providing precise control over depth of field, contrast, and resolution. By closing the iris, users can increase depth of field for thicker specimens or improve contrast in low-contrast samples, while opening the iris maximizes resolution for fine detail observation. Featuring advanced plan optics, this objective delivers exceptional flatness of field across the entire image, ensuring edge-to-edge sharpness critical for digital imaging and photomicrography. The oil immersion design, combined with a numerical aperture of 1.25, provides superior resolution and light-gathering capability ideal for observing fine cellular details, bacteria, and subcellular structures. With infinity-corrected optics and standard RMS threading, the PlanC N 100X with iris integrates seamlessly with Olympus CX, BX, and IX series microscopes, making it an excellent choice for clinical diagnostics, biological research, and educational applications where imaging flexibility is essential.