... Microscopy Features in the BloodDarkfield Iris Built into the Two Oil Immersion Objectives – 50x and 100x – Allowing More Fine ... DIN brightfield objectives: 4x, 10x, 20x, 40x, 50x (oil), 100x (oil immersion) – the 50x and 100x are dual usage with built ... compound microscope: 401mmInstrument weight: 18 lbsIncluded ItemsIncludes dust cover, immersion oil, spare 350W bulb, and fuseIncludes 0.5x c-mount ...