Product Description C/CS Extension Tube Set Extension Tube Kit allows to be focused on an object that is nearer to the camera than the normal lens focus movement provides. Extension Tube Kit is consists of 6 metal spacers and barrels of the following length (0.5mm, 1mm, 5mm, 10mm, 20mm and 40mm). By using these individually or in combination between the lens and camera, a C-Mount or CS-Mount lens can be focused to accommodate a large range of object distances. View the Specification Sheet for a complete table of object distances.
