Product Comparison
Technical Parameters
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Focal Length50mm19mm4mm8.7mm
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F/#2.00.91.11.0
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Wavelength3.7-4.8µm8-12μm8-12μm8-12μm
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Focus MechanismManualManualFixed AthermalizedFixed Athermalized
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InterfaceFlangeThreadThreadThread
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Weight89.1g<65g71g<33g
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DimensionsØ51mm×33.58mmØ37mmx31.25mmØ36mm×32.5mmØ28mm×28.32mm
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External CoatingARDLCARAR/DLC
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Operating Temperature-40°C to +85°C-40°C to +80°C-40°C to +60°C
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Storage Temperature-60°C to +85°C-45°C to +85°C-45°C to +65°C
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Front Element SealingIP67IP67IP67IP67
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Focus Range5m-Infinity3m-infinity0.5m-Infinity
*Blank = No data