The ZOOM ZH38 is a handheld thermal monocular packed with next generation technologies. One of the ZH38's more notable features is its patented dual-field-of-view. This function provides 2X optical magnification, and was developed in response to the image degradation caused by digital zoom. With the dual-field-of-view design, the user can zoom in and out of the image while retaining 100% of the image quality that otherwise would have been lost with digital zoom. Using the dual-field-of-view is as simple as twisting the objective focus ring, and allows the user to choose between a wide field of view for detection and a narrow field of view for identification. The ZOOM ZH38 is also the first of its kind to include a full-color 1440x1080 HD OLED display which works in tandem with its ultra-sensitive 12 microm 640x512 sensor and a MATRIX III Processing unit for outstanding clarity and resolution. In addition, the ZH38 is equipped with Shutterless Calibration Technology to simplify use and reduce power consumption. Features of the ZOOM ZH38: Patented dual-field-of-view: allows user to select between narrow and wide FOV with optical magnification without loss of image clarity Full-color 1440x1080 HD OLED display Shutterless Calibration Technology This product is backed by iRayUSA's industry-leading 5-Year iRayUSA warranty with a 5-day repair guarantee. During the published 5-year warranty period, iRayUSA will repair or replace, at its discretion, any iRayUSA or InfiRay Outdoor optic that becomes defective from normal use. If they cannot repair an optic in less than one week, they will offer a replacement in like or better condition.