Riester L2 Ophthalmoscope head only 3.5V

Riester L2 Ophthalmoscope head only 3.5V

• High Performance Optics – The L2 Ophthalmoscope has separate red-free, blue and polarisation 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 engage-able 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
• 2.5V halogen lamp