Certainly, the zoom dual field of view monocular stands out as the most technologically advanced handheld thermal optic ever introduced to the market. While this claim may sound bold, any attempt to articulate the ZOOM's capabilities falls short. What distinguishes it from the rest the zoom embodies three crucial technological breakthroughs: adjustable optical zoom, shutterless calibration technology (SCT), and a vibrant full color 1440x1080 OLED display. However, it is the adjustable optical zoom feature that truly sets the zoom ZH38 apart. Through the innovative patented dual-field-of-view design, users can effortlessly switch between a wide field of view (FOV) optimized for detection and a narrow FOV ideal for target identification. This optical magnification advancement of 2X is easily achieved with a simple twist of the objective focus ring, preserving 100 percent of the sensor's native resolution. Why is adjustable optical zoom a game-changer in the past, thermal monoculars had fixed fields of view, requiring digital zoom adjustments through software. Unfortunately, digital zoom often compromised thermal image resolution. With the zoom ZH38, this issue is revolutionized through its adjustable optical zoom feature. With a single device, users can now enjoy an adaptable field of view. A twist of the focus ring to the right yields a 1X - 640x512 thermal resolution image, while a twist to the left provides a 2x - 640x512 thermal resolution image. Historically, thermal monoculars struggled with the fixed field of view limitation, leading to image degradation via digital zoom and the need for dual devices to achieve dual fields of view in full resolution. Infiray outdoor dedicated extensive resources to years of research and development to find a solution to this common challenge. The result of this endeavor is the innovative patented dual field of view lens design, now introduced for the first time in the commercial market through the zoom ZH38 dual field of view Monocular.