A high-quality stereo zoom-objective microscope with a magnification range of 0.7X ~ 4.5X. Comes with standard 10X eyepieces giving a total magnification factor of 7 to 40X. Also available in trinocular form with a vertical photo tube suitable for photographic or video applications.Both available with a wide range of accessories.Optional Accessories• SWF eyepieces, micrometer eyepieces and eye shades• Wide range of camera and video accessories (trinocular only)• Supplementary objective lenses 0.3X, 0.44X, 0.5X, 0.75X, 1.5X and 2.0XThe field diameter is 32.8 ~ 5.1mm and the working distance is 93mm.