50mm DG Series Fixed Focal Length Lens

Product Details Up to 4/3″, C-Mount Lens Up to 9 MegaPixels, 2.8µm Pixel Size Sensors Double Gauss (DG) Lens with low distortion and high performance 18mm to 75mm Focal Length TECHSPEC DG Series Fixed Focal Length Lenses utilize a Double Gauss design to provide high-performance, low distortion, compact size, and exceptional value, while exceeding the performance of typically available fixed focal length lenses. These lenses feature a mechanical design that allows the focusing movement to be motorized by the user, yields image resolution greater than 100 lp/mm, and have a standard C-Mount. For most applications, the camera-lens combination can be attached to workstations using the ¼-20 mount provided on the camera. TECHSPEC DG Series Fixed Focal Length Lenses include focus ring, manual iris, and set screws to facilitate a low profile integration in machine vision applications. Typical applications for the DG Series lenses include machine vision, assembly-line integration, and measurement and image analysis. Note: Industrial Boom Stands are recommended for building vibration-free workstations. Specifications General Product Family: DG Series Type: Fixed Focal Length Lens Imaging Lens Type: Traditional Double-Gauss Style Lens Physical & Mechanical Properties Iris Option: Variable Length (mm): 50.10 Maximum Diameter (mm): 40 Outer Diameter (mm): 40 Weight (g): 174 Maximum Rear Protrusion (mm): 4 Optical Properties Horizontal Field of View @ Max Sensor Format: 78.7mm – 19.3° Field of View at Max Sensor Format: Horizontal: 77mm – 19.4° Vertical: 57.8mm – 14.6° Diagonal: 96.1mm – 24° Horizontal Field of View, 4/3″ Sensor: 78.7mm – 19.3° Horizontal Field of View, 1.1″ Sensor: 64.6mm – 15.9° Horizontal Field of View, 1″ Sensor: 58.2mm – 14.4° Horizontal Field of View, 2/3″ Sensor: 40.1mm – 9.9° Horizontal Field of View, 1/1.8″ Sensor: 32.8mm – 8.1° Horizontal Field of View, 1/2″ Sensor: 29.1mm – 7.2° Horizontal Field of View, 1/2.5″ Sensor: 26.4mm – 6.6° Horizontal Field of View, 1/3″ Sensor: 21.9mm – 5.4° Horizontal Field of View, 1/4″ Sensor: 16.4mm – 4.1° Maximum Image Circle (mm): 21.60 Numerical Aperture NA, Object Side: 0.0227 Number of Elements (Groups): 6 (4) Focal Length FL (mm): 50.00 Working Distance (mm): 240 – ∞ Aperture (f/#): f/4 – f/18 Coating: λ/4 MgF 2 Coating Specification: λ/4 MgF 2 Entrance Pupil Position (mm): Measured from the first lens surface on the object side. Positive values indicate direction toward the image side; negative values indicate direction toward the object side. 36.29 Object Space Principal Plane (mm): Measured from the first lens surface on the object side. Positive values indicate direction toward the image side; negative values indicate direction toward the object side. 33.95 Image Space Principal Plane (mm): Measured from the last lens surface on the image side. Positive values indicate direction toward the image side; negative values indicate direction toward the object side. -20.32 Maximum Distortion (%): 1.01 Exit Pupil Position (mm): Measured from the last lens surface on the image side. Positive values indicate direction toward the image side; negative values indicate direction toward the object side. -18.07 Lens Wavelength Range: VIS Sensor Maximum Sensor Format: 4/3″ Pixel Size (μm): 2.74 Threading & Mounting Filter Thread: M39.0 x 0.50 (Female) Mount: C-Mount Environmental & Durability Factors Storage Temperature (°C): -20 to +60 Regulatory Compliance RoHS 2015: Compliant × REACH 201: Compliant × Certificate of Conformance: View ×