How to Choose a Lens for Machine Vision
Blog post from Roboflow
Selecting the right lens for a machine vision camera is essential for achieving optimal image quality in various applications, such as industrial automation, quality control, and robotics. The guide emphasizes understanding key factors like lens mount types, sensor compatibility, focal lengths, and environmental considerations to ensure compatibility and effectiveness. It explains the importance of matching the lens to the camera's sensor size to avoid issues like vignetting and highlights the significance of working distance and field of view in capturing precise images. Additionally, the guide discusses how aperture settings affect light control and depth of field, which are crucial for maintaining image clarity across different lighting conditions. The use of online lens selection tools and specialized lenses, such as telecentric, macro, and zoom lenses, is also recommended for specific applications. Real-world scenarios demonstrate how these principles apply to tasks like monitoring assembly lines and identifying trucks in a shipping yard, illustrating the practical implications of choosing the right lens for machine vision systems.