YONGNUO RF-602 YN-126 Remote Cable LS-021/S1 for Sony a900，a850,a700, a550, a500, a450, a350, a300, a200, a100，Konica Minolta Dynax 7D, 5D, DiMAGE 9, 7HL 7U 7, 5, 4X, 3

It is made by metal with very high quality, but the price is much more acceptable. There is a wear rubber which have the funcion of anti-shock and anti-squeeze, the mirror will not be scratched. It's 100% compatible with -Canon EF 70-200mm f/4L USM -Canon EF 70-200mm f/4L IS USM -Canon EF 300mm f/4L USM -Canon EF 400mm f/5.6L USM. Features: -Minimum inner ring diameter: 65mm . -Ring thickness: 4mm. -The UNC (Unified National Coarse Thread) is 1/4. Package Included: 1 * Tripod Mount Ring..*Pls kindly note that the item is shipped from China Port.