This is a C-Mount adapter with a 38 mm port. One end is for C-mount (25 mm). Key benefits - Enables integration of C-mount optics with equipment that provides a 38 mm port - Simple, compact solution for adding C-mount components to existing 38 mm interfaces - Maintains alignment to support reliable optical performance Compatibility and dimensions - Function: C-mount interface on one end, 38 mm port on the other - Compatible with C-mount components sized 25 mm - Port diameter: 38 mm - C-mount end: designed for 25 mm components Material and performance - Material: not specified in the provided details - Performance: designed to preserve alignment between connected components and enable consistent optical paths Use scenarios - Laboratory imaging: connect a C-mount camera or objective to an instrument that features a 38 mm port - Inspection systems: adapt 25 mm C-mount lenses or accessories to a 38 mm interface in a production line setup - Field service: quickly retrofit existing 38 mm hardware to accommodate C-mount optics during on-site maintenance Notes - Please refer to the product’s official specifications for material details and exact compatibility with your equipment.