Olympus UPlanSApo 30x Silicone Immersion Microscope Objective (NA 1.05, Infinity)

The Olympus UPlanSApo 30× Silicone is a specialized high-NA objective that addresses one of the fundamental challenges in deep-tissue fluorescence microscopy: refractive index mismatch. Standard water immersion objectives (n=1.33) and oil immersion objectives (n=1.515) both suffer from increasing spherical aberration as imaging depth increases in biological specimens, because the refractive index of biological cytoplasm and tissue (~1.38) falls between the two. Silicone immersion oil (n=1.40) closely matches this biological refractive index, dramatically reducing spherical aberration at depth and maintaining image quality and resolution throughout thick specimens — making the UPlanSApo 30× Silicone the preferred choice for deep confocal imaging, 3D reconstruction of thick tissue sections, and long-term live-cell imaging where maintaining optical performance at depth is critical. The super apochromat correction ensures accurate chromatic registration across all fluorescence channels, essential for multi-color co-localization studies. The 30× magnification with NA 1.05 and FN 26.5 provides a wide imaging field at high resolution — ideal for imaging organoids, brain slices, embryos, and other large biological structures where both field coverage and optical performance at depth are required. Compatible with Olympus BX, CX, and IX series microscopes. Supplied new from stock, part number N4212100.