Zeiss Plan Apochromat 20x Objective 440640

The Zeiss Plan Apochromat 20x objective represents the pinnacle of optical correction technology, delivering superior chromatic and spherical aberration correction for the most demanding high-resolution imaging applications. Plan apochromat objectives correct for chromatic aberration across three wavelengths (red, green, blue) and spherical aberration at two wavelengths, ensuring color-accurate, high-contrast images with minimal optical artifacts. This level of correction is essential for critical color imaging, quantitative fluorescence microscopy, and applications where faithful color reproduction is paramount. At 20x magnification with 0.80 numerical aperture, this objective delivers exceptional resolution and light-gathering capability for visualizing fine cellular structures, subcellular organelles, and detailed specimen features. The high NA enables superior resolution approaching the theoretical limits of light microscopy, making this objective ideal for demanding research applications. The 0.55mm working distance is typical for high-NA dry objectives and accommodates standard microscope slides with #1.5 coverslips. The RMS thread mount ensures compatibility with a wide range of microscope platforms. Plan apochromat objectives are the preferred choice for color-critical applications including histopathology, immunohistochemistry, multi-color fluorescence imaging, and high-resolution digital photomicrography where accurate color representation and maximum resolution are essential.