Very compact and lightweight, our combination monocular instruments are the solutions to demanding precision work applications. All models feature precision anti-reflection coated optical systems with smooth spiral twist focus and a roof prism erector system to provide a corrected image as your eyes would see it. At close focus, it is technically a long white box, with neck strap and lens cloth.
DSL-3912 Magnification: 3X OB lens dia.: 20mm Field of view: 11.5°
Close focus distance: 200mm At close focus distance visual field: 36mm