日本Kowa-opt抗振抗冲击镜头LM50JCM-V LM50JCM-V Model LM50JCM-V Condition New 2/3" Megapixel Anti-Shock & Vibration Lens Kowa's new JCM-V series is made for use in high vibration and high shock environments.  With a design based on Kowa's standard 2/3" JCM lenses, this new ruggedized megapixel lens series is ideal for applications that require increased durability and high optical performance. DATA SHEET Lens Type Fixed Focal Length Lens Image Size 2/3" (8.8 x 6.6 x 11mm) Focal Length 50mm Iris Range (F-Stop) F1.4 / F4 / F8 / F16 Minimum Focus Distance 0.2m Mount C-Mount Angle of View 2/3" (Hor. x Ver. x Dia.) 9.6 x 7.2 x 11.9° Angle of View 1/2" (Hor. x Ver. x Dia.) 7.0 x 5.2 x 8.7° Angle of View 1/3" (Hor. x Ver. x Dia.) 5.2 x 3.9 x 6.5° Field of View at M.O.D. 2/3" (Hor. x Ver. x Dia.) 29.3 x 21.9 x 36.6mm Field of View at M.O.D. 1/2" (Hor. x Ver. x Dia.) 21.3 x 16.0 x 26.6mm Field of View at M.O.D. 1/3" (Hor. x Ver. x Dia.) 16.0 x 12.0 x 20.0mm TV Distortion -0.03% Flange Back 17.526mm in air Back Focus 35.5mm in air Filter Thread Size M27 x P0.5 Front / Rear Effective Diameter Front Φ21.7mm / Rear Φ14.6mm Exit Pupil Location -63.7mm Temperature Range -10°C ~ +50°C Storage Temperature Range -40°C ~ +60°C Resolution: Center / Corner Center 120lp/mm / Corner 100lp/mm MORE INFO • For megapixel applications requiring a sensor size of 2/3" (Φ11mm) or smaller. • Unique mechanical design to guard against strong vibration & shock. • Two way reversible nut is utilized to tightly lock the focus adjustment ring in place. • All internal glass elements are glued to the inside housing to improve durability. • Ability to choose from four interchangeable iris plates. This provides the flexibility of having an adjustable F-stop while maintaining the advantage of a fixed iris with no moving parts.