Detail Information brand new and high quality. Product Features: This adapter can allow your use any TAMRON ADAPTALL II mount lens in all of 10D/20D/30D/40D/50D/350D/400D/450D/500D/1000D/XT/XTi/XS/XSi/T1i/5D/5D Mark II mount DSLR Camera.(As long as the camera is using a EF lens) With this new EMF adapter. Beside you can obtain for focus confirmation red light, and bee sounds. You also can set the aperture infomation. The camera can be changed on a dandelion aperture in interval from F1.1 to F45 The camera can be changed on a dandelion focal length in interval from 1mm to 65535mm Date can be save even turning off the camera When for focus is correct, there will be an indicator of red light and a sound singal that will prove chosen for focus You can use in Av or for M mode. Take care: 1. Put red marks of the adapter and lens collar together. 2. Turn the adapter clockwise till the fixative click. 3. Set Tamron lens. To remove the adapter you should unpress fixative pin and turn the adapter anticlockwise. Package Included: Adapter x 1 Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!