Pulsar Magnification Doubler 1.5x for 60mm Rifle Scope Night Vision Accessory. 5x Magnification Doubler. This magnifying doubler by the experts at Pulsar features a wide angle that attaches to the Rifle Scope's 50mm objective lens increasing your Phantom or Sentinel's magnification to 4.5x. With the Pulsar NV50 1.5x Lens Converter increase your shooting distance and magnification without replacing your scope's standard lens. Specifications for Pulsar NV50 1.5x Lens Converter: Lens diameter: 50 Magnification x: 1.5 Magnification when used w/ the Lens Converter x: 4.5 Field of view of when used w/ the Lens Converter x: 8.4 Focusing range of when used w/ the Lens Converter m: 20 to inf. Operating temp. / F: -30 to +40 / -22 to +104 Thread type: M56x0.75 Length mm: 70 External diameter mm: 91 Weight oz: 11.3 Warranty period year: 3 Package Contents: Pulsar Night Vision Rifle Scope 1.5x Magnification Doubler Pulsar PL79097: Magnification Doubler 1.5x for 60mm Rifle Scope Night Vision Accessory