Product Name: 50mm Gunsight Lens Ge Lens Thermal Imaging Infrared Lens Infrared Imaging IR Lens Germanium Lenses Model NO.: IR640/1.2/50G Coating: Dlc HD Ar Customized: Customized Certification: RoHS, ISO9001 Lenses Color: Brown Material: Optical Glass Shape: with Housing Transmittance: 80%-90% Type: Thermal Imaging Usage: Lighting, Medical, Optical, Photography, Thermal Imaging Transport Package: 150mm*150mm*150mm Origin: China HS Code: 9001909001 Product Description SPECIFICATIonFocal Length50mmF#1.2Wavelength8-12umTransmission>89%Image Diagonal13.6mmCoatingDLC/ARFOV12°x9°Detector640x480,17umBFLBFD8.5mmBWD18mmFocus Range1m-infinityMount TypeM45X1Fcous TypeManual FocusWeight178gDimensionsLength63.7mm, Ф56mmRising's advantage is: Sufficient, stable, low-cost supply of infrared materials.Combining sufficient infrared material supply, rich manufacturing experience and standardized services, RISING specializes in manufacturing high-precision infrared optical components for medical / Life Sciences, national defense and security, semiconductor and industrial OEM markets. From optical design to material procurement to mass production, our company is committed to optimizing the performance, cost, quality and delivery time of your infrared products.Products are mainly exported to Southeast Asia, North America, Europe, Russia, Japan, South Korea and other developed countries and regions. We have won a high reputation among our customers at home and abroad.The experience accumulated in the infrared optical market, together with the high qualification and strong optical background of the company's leaders, makes RISING a reliable supplier for many OEM customers and R&D institutions around the world.FAQ1.What's your MOQ?10pcs.2.What's your leadtime?1day for inventory and 25~35days for the new project.3.What's your shipping type?Usually by Fedex,DHL,TNT,EMS etc or Customer appointed.4.What's the payment condition?T/T,L/C,VISA,Paypal,Alipay or Negotiation.5.What's your quality guarantee period?Three years.