Volk Super VitreoFundus Non Contact Slit Lamp Lens Patented double aspheric glass optics provide enhanced imaging; High index glass provides improved stereopsis and image clarity Widest field of view in a non contact lens with views past the vortex Excellent small pupil capability through a 3  4mm pupil Field of View: 103/124, Image Magnification: .57x, Laser Spot: 1.75x, Working Distance: 4-5mm Lens comes with Volk's new single lens case. Custom engraving of lens and case available, if purchased from Volk.com.