Riester Ri-scope L2 Ophthalmoscope 2.5V Dry Cell

The enhanced basic model with separately engageable red-free, blue  and polarization filters for each aperture.

• Diopter wheel with 29 corrective lenses
• Plus 1-10, 12, 15, 20, 40
  Minus 1-10, 15, 20, 25, 30, 35
• Easy-to-operate aperture hand-wheel with semi-circle, small/medium/large circle, fixation star, and slit
• Includes filter wheel engageable for all apertures with symbol display, red-free filter, blue filter and polarization filter
• Optimized high-performance optics with aspherical condenser lens
• Parallel beam path
• Dust-proof