Olympus CK40 Inverted Phase Contrast Tissue Culture Microscope

The Olympus CK40 is a dependable inverted phase contrast microscope that has served cell biology and tissue culture laboratories for decades, and this trinocular configuration adds camera documentation capability to a proven optical platform. Its inverted design places objectives below the stage, providing unrestricted access to culture dishes, flasks, and multi-well plates without disturbing living specimens. Three objectives cover the core tissue culture workflow: the 4x brightfield for wide-field specimen survey, and 10x and 20x long working distance phase contrast objectives for high-contrast imaging of unstained cells through standard culture vessel walls. The trinocular head with camera port enables simultaneous binocular observation and digital image capture, making this system well-suited for documentation, teaching, and collaborative review. In excellent condition, this is a cost-effective and immediately deployable inverted microscope for any cell culture environment.