For direct ophthalmoscopy with aspherical precision optics, correction lens wheel +/- 20 dioptres and six diaphragms: slit diaphragm, large circle, small circle, half-circle, red-free (green) - large circle and and fixing aid for all ophthalmological examinations. Excellent illumination thanks to the efficient halogen bulb.
Batteries 1.5 V, type (AA) - Mignon, are not included in the scope of supply!