1 Focal length adjustment flexibility: The focal length can be manually adjusted from wide Angle to telephoto to meet the needs of different shooting scenes.Creative space for more composition and perspective. 2 Aperture control: Aperture size can be manually adjusted to control depth of field and exposure. A large aperture can blur the background, and a small aperture can increase the depth of field. In low light, exposure can be improved by increasing the aperture. 3 Reliability and durability: The mechanical structure is relatively simple, the failure rate is low, and the service life is long. It is also more reliable when working in harsh environments. EFL 5-50 F/NO 1.6IRIS SENSOR 1/2.5
