Features: Z-type lower illumination system LED Magnification - x6, (5 steps only) x10, x16, x25 and x40 (5 steps only) 8o Converging eye pieces: 49-77mm Slit Width - 0 to 14mm continuously variable Slit Length - 0.2, 2, 3, 5, 9, & 14mm circle, 1mm square and reserved Filters - blue, red-free, yellow, clear, Clear, neutral density, and diffuser. Slit angle 360o continuous. Available in unit or table mount configuration. Available with 0o parallel eye pieces: 38-55mm 3 Year warranty Quick Overview New Keeler Z Series Slit Lamp Painstakingly Crafted Slit Lamps. Introducing Z Series of Slit lamps from Keeler - quality design and leading technology Slit Lamps with a contemporary design. We set ourselves the task of designing a slit lamp to exceed performance expectations. Our painstaking attention to detail has helped us to achieve just this. The result is Keeler Z Series, combining intricate performance with practical elegance. See www.keeler-symphony.com for details. Table Top or Unit Module Exclusive LED Illumination.