The LED illumination allows observation under a brighter, homogeneous condition than the conventional halogen illumination. LED illumination ensures consistent color temperature during light intensity adjustment. Due to a shorter LED wavelength easier visualization of details in the anterior chamber and vitreous such as flare and inflammation is obtained.
TheTopcon SL-D701 incorporates four filters which can be selected; a cobalt filter, red-free filter, neutral densityfilter and an amber filter. The amber filter improves the contrast and color of retinal observation. The SL-D701
has 12.5x eyepieces and converging binocular tubes with a parallel magnification body (6x, 10x, 16x, 25x and 40x) for extremely sharp stereoscopic observation. As standalone the joystick trigger button of the Topcon SL-D701 provides an illumination boost for detailed observation, available for halogen illumination and LED illumination.