- This macro extension tube set is suitable for all M65 x 1mm Screw Mount Cameras. - Transform your Lens into a Macro Lens. It moves the lens from the filmor digital sensor. The closer the focus is, the greater themagnification. - The extension tube does not affect image quality asthere is no optics inside. - Auto-focus function cannotoperate. - This tube set of 3 individual tubes. - The 3 individual rings can be used separately with the camera body mount and a lens adapter, and of course the magnificationratio will be different. - This extension tube also be used as a Lens Hood. Specification: - Female side: M65x1 screw thread. - Male side: M65x1 screw thread. - Weight: 69g; - Made of metal. Package - 3 extension tubes: 7mm, 14mm, 28mm.