About this item:
* Premium-grade lens adapter, high precision, good quality.
* Smooth surface for effortless mount, infinity focus allowed diaphragm control of the lens is set manually.
* Made of brass and aluminum (not plastic), anodized aluminum construction.
* Compatible Cameras (including, but not limited to): Canon EOS-1Ds/ EOS-1D/ EOS-5D/ EOS 7D/ EOS 60D/ EOS 600D
* Please note Infinity focus position： the position of the infinity mark 【∞】of the telephoto lens or super-telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes. The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity.
