New Hejnar Photo Quick Release foot replacement for:
Canon 300F2.8 IS 2
500mm F4 IS 2 Lenses
600mm F4 IS 2 lenses
Canon EF 200-400 F4L IS lens
To remove the Canon foot, use the M3 hex key tool that comes with the H127 to completely remove the four Canon mounting screws.
To install the H127, use the four original screws and secure foot to the lens. .
If your mounting screws loosen over time, consider using of LocTite 242 for security.
It is the best quick release system for tripods and monopods when combined with Arca style ball head and quick release clamps. International standard dove-tail rail, compatible with Arca-Swiss type quick release clamps