Ophthalmoscope – ri-scope L XL 3.5V (Riester)- NSL-3724

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, slit and red-free filter with contrast-enhancing effect
Optimized high-performance optics with aspherical condenser lens
Parallel beam path
Dust-proof