We are offering ophthalmoscope - 01. Cat no. Ibl-2201 uses halogen light for true tissue color and consistent, long-lasting illumination. Versatile and reliable at an economical price. halogen light for true tissue color and consistent, long-lasting illumination 6 apertures for generalist use: micro, small, and large spot sizes, fixation target, slit aperture, and red-free filter 28 focusing lenses with a range of -25 to +40 diopters rubber brow rest prevents scratching of eyeglasses.