Heine Sigma 250 Indirect Ophthalmoscope Binocular is a mid-range ophthalmoscope binocular making accurate diagnosis easy. When designing this ophthalmoscope binocular, the goal is to have an instrument that would provide the most precise examination with exceptional comfort. This ophthalmoscope binocular is super ultralight weighing at only 110gm. Utilizing LED HQ illumination technology, this device offers crisp, high resolution images.