An original Duclos Lenses design, the LPL Macro Extension Tube allows you to decrease the minimum focus distance while maintaining optimal image quality by adding length to the flange which moves the lens forward and further from the camera sensor. While mid to long range lenses benefit most from this product, the Duclos LPL Extension Tube can be used on just about any LPL mount lens. Designed, manufactured, and assembled in Chatsworth, CA, the stainless steel components, precision tolerances, and optically flat internal surface finish are meticulously married to reduce stray light and ensure the highest quality is maintained. Works with S35 and 35FF format lenses and cameras. (Note: it is not compatible with anamorphic lenses)