Genuine Zoom Slit Lamp Based on usage, clinical/digital photo system is available for selection. With the high resolution digital photo capability, digital photo system is best use for medical record. High performance Optics 5.5x wide zoom ratio, 317mm short reaching distance, 38.3mm wide field of view, crystal clear surrounding area observation is possible. 16mm Slit With slit length of 16mm, it makes cornea observation had never been this sharp before. Standard build in barrier filter Fluorescence images can be captured when using with blue filter. Selectable eye piece 12.5x eye piece: Magnification 5.9x to 32.5x (Field of view:38.3mm, Field number: 18.0mm) 15.0x eye piece: Magnification 7.1x to 39x (Field of view:38.3mm, Field number:18.0mm) High Resolution Digital Photo (For Digital Photo system) Able to capture image in live view. With just one press of joystick button, photo and video will save automatically.