This bench-top upright microscope features a binocular head, manual coarse/fine focus knobs, and a four-position objective turret for quick magnification changes. The sturdy manual X–Y stage accepts standard slides or custom perfusion chambers and includes a clamp assembly with dual inlet/outlet tubing for gravity-fed solution exchange. Integrated Köhler illumination with a halogen lamp provides even bright-field lighting. Ideal for live-cell imaging under flow, microfluidic chip observation, and ex vivo tissue studies requiring on-stage perfusion.