Features: Lens collar support is specially designed for RF 100-500mm F4.5-7.1L IS lens. Applicable Model: for RF 100-500mm F4.5-7.1L IS Lens. Bottom is standard RRS quick release plate, for RRS / / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / / MARSACE ballhead.
eBay