Macro Extension Tube Set for Minolta Sony Alpha A230, A200, A330, A350, A380, A230L, A200K, KA850, A330L, A230Y, A350K, A550, A380Y, A500, A300K, A900, A100, A380L, A550L, A330Y, A700, A350X, A850, A200W, A300x, A700K, A500L Digital SLR DSLR Camera suitable for all Sony Minolta SLR/DSLR cameras Transform your Lens into a Macro Lens The closer the focus is, the greater the magnification The extension tube does not affect image quality as there is no optics inside The geared drive system can greatly enhance accuracy and speed of adjustment of the slider