Differences between binocular and trinocular microscope. Base of Camparison Binocular MicroscopeTrinocular Microscope EyepieceBinocular Microscope have two eyepieces.Trinocular Microscope have three eyepieces. Objective LensBinocular microscopes have three or four objective lenses, each of which provides an average level of magnification and the closest possible view.A trinocular microscope has five bright objectives' lenses with an optimal magnification range. Light SourceIn the binocular the light passed through the illuminator placed at the bottom of the microscope.In the trinocular microscope, light reflected directly by the microscope eyepiece. Viewing the SampleBinocular can be offer 2D image.Trinocular microscope can show 3D Image of specimen.