Features: 1. Made of high quality aluminum alloy material, high strength, non-deformation, durable and long service life. 2. Very fine workmanship, tight and smooth. Easy to assemble. 3. The chip has power-off protection and chip off protection, edited information is not lost. 4. Simply switch the aperture and press the depth-of-field button to solve the out-of-focus problem, easy to operate. 5. The lens mount adapter is suitable for M42 screw lens, for Canon EOS/EF mount camera. Specifications: Condition: 100% Brand New Item Type: Lens Adapter Material: Aluminum Alloy Color: Black Weight: 27g Size: Approx. 6.4*6.4*8cm/2.52*2.52*3.15inch Compatible Lens: for M42 Screw Lens Compatible Camera: for Canon EOS/EF Mount Camera Application: for Canon EOS 500D,1000D,450D,400D,350D,300D,50D,40D,30D,20D,10D, 5D,6D,60D,650,5D3 Camera Package List: 1 * Lens Mount Adapter 1、Made of high quality aluminum alloy material, high strength, non-deformation, durable and long service life. 2、Very fine workmanship, tight and smooth. Easy to assemble. 3、The chip has power-off protection and chip off protection, edited information is not lost. 4、Simply switch the aperture and press the depth-of-field button to solve the out-of-focus problem, easy to operate. 5、The lens mount adapter is suitable for M42 screw lens, for Canon EOS/EF mount camera.