The 819M-CM-1.0 is a female C-mount (1-32 thread) adapter mounted to the 1 inch port of the 819C or 819D series integrating spheres.  The C-mount thread is commonly adopted in cameras and other optical instruments.

819M-CM-1.0是一个女性C-mount(1-32螺纹)适配器,安装在819C或819D系列集成球体的1英寸端口上。c型线是相机和其他光学仪器常用的螺纹。