SL-R9 Digital E-focus Slit Lamp 1.auot-exposure, auto-gain, auto-white ... pixel resolution 3.LED bulb SL-R9 Digital E-focus Slit Lamp Features: Equipped with auto-focus digital module, the ... ),6x(Φ 34.7mm)Slit IlluminationSlit widthContinuously variable from 0 to 14mm(slit becomes a circle at 14mm)Slit lengthContinuously variable from 1mm ... illumination>=50klx Product: SL-R9 Digital E-focus Slit Lamp