The IV950 Series Inverted Microscopes are designed for Tissue Culture, Cell Biology, Microbiology and more. Featuring Binocular or Trinocular heads and Long Working Distance (LWD) objectives in your choice of Plan Achromat or Plan Phase Contrast. The over-sized stage offers precise and smooth ball-bearing movement, for clear, steady viewing while scanning the field of view. Precise fine focus controls move in 0.002 mm scale value increments. Phase Contrast models include a Centering Telescope.