IRay USA ZOOM ZH38 Dual FOV 640x512 19 38MM 1X 2X Thermal Monocular Double Rifle Case Featuring a daylight bright mrad Featuring a daylight bright mrad ranging reticle with an illuminated led dot It features a quick change system on top of a glass smooth ball head mount What emerged is an innovative patented dual field of view lens design now offered for the first time in the commercial market in the ZOOM ZH38 Dual Field of View Monocular The fixed field of view limitation in thermal monoculars has always posed a problem of image degradation using digital zoom and the need for 2 devices to achieve dual fields of view in full resolution