CX23RTFS2-1-2 Upright microscope set for transmitted light observation. CX23 microscope frame with integrated LED illumination, quadruple nosepiece, fixed mechanical stage (174 x 89 mm, travelling range 76 x 30 mm) with right hand low drive control and specimen holder for one slide. Built-in Abbe condenser with NA 1.25 and aperture stop. Coaxial coarse and fine focus, complete stroke 15 mm, fine stroke 300 µm/rotation, graduation 2.5 µm.