Omer, manufactured by Temmek Optics, is a medium-wavelength infrared (MWIR) cooled zoom lens designed for 384 x 288-pixel focal plane arrays with a 15-μm pixel pitch. The compact f/4 lens is suitable for handheld, small unmanned vehicle and other lightweight applications. It offers three fields of view: 22.5, 55 and 135 mm. Motorized focus and field of view mechanisms are communicated via RS-422 or -232. Average transmission exceeds 91%, and operating temperature is from -30 to 55 °C. The lens measures 73 x 64 x 79 mm, weighs <250 g and has a motorized focus mechanism. Power input is 12 VDC, 0.6 A.