With a choice of eight- and ten-times magnifications, the DCF HRII-series models feature a nitrogen-filled waterproof construction (JIS Class 6) with a full-body rubber housing and phase-coated roof prisms for high-resolution images. They also come equipped with a host of user-friendly features that facilitate handling and viewing comfort, including an inner-focus optical design with multi-coated optical elements and dust-proof glass elements, helicoid-type eyepiece rings, long eye relief, and a click-stop diopter adjuster.