AGM Global Vision Adder TS50-640 Thermal Imaging Rifle Scope 12um (50 Hz)AGM Adder TS50 640 is the thermal imaging scope developed for 24 hours operation under any weather and environmental conditions. Two objective lens options allow the customer to choose the perfect unit for your needs where a 35mm lens is designed for medium range shooting, while the 50mm lens model will be great for long range missions. Riflescope has 640 x 512 high sensitivity thermal detectors and a 1024 x 768 OLED monitor, which provides a clear