E-scope® ophthalmoscopes are available with halogen or LED illumination. - With 2.7V halogen illumination and with innovative 3.7V LED illumination for higher-contrast and more efficient diagnosis. - Dioptre disc with 18 corrective lenses (± 1,2,3,4,5,6,8,10,15,20, dioptres). - Easy-to-use aperture wheel with six different apertures (fixation star, large circle, small circle, red free filter, blue filter, semi circle). - High performance optics with aaspherical condenser. - Spectacle protection. - Parallel optical path. - Dust-protected.