Description£º 1.This macro extension tube set is suitable for all Sony Minolta SLR/DSLR cameras. Transform your Lens into a Macro Lens. It moves the lens from the film or digital sensor. The closer the focus is, the greater the magnification. 2.The extension tube does not affect image quality as there is no optics inside. In comparison, a close up filter is often blamed for degrading the quality of image. Auto-focus function cannot operate. 3.This tube set consists of 3 individual tubes, camera body mount and a lens adapter. The 3 individual rings can be used separately with the camera body mount and a lens adapter, and of course the magnification ratio will be different 4.It only can give focus confimation signal , it can"t auto focus, also can"t change aperture for your sony lens. 5.When using the extension ring with a DSLR/SLR, the camera should be set in the ¡®M¡¯ mode. Compatible With£º Sony Alpha Minolta MA mount Lens and Digital Camera