Acratech quick release plates are compatible with all Arca Swiss type clamps. The lip prevents rotation on your lens.
Posted by Cameron Davidson on 6th Jul 2016
Perfect. As expected from the good folks at Acratech. Exceptionally well made, fits perfectly and is milled from high grade material. Prefer Acratech over the other two companies that make similar products. Acratech customer service is outstanding. They recently helped me with an older product that I had troubles with and I am now loyal to them for all future purchases for tripod heads and plates.
Posted by David Adams on 8th Apr 2016
I just purchased the Canon EF 100-400mm f/4.5-5.6L IS II USM Lens and needed the adaptive plate for my Acratech head. The website was very useful to identify the correct plate, order was placed and processed relatively easy. I received a timely confirmation, and the order was delivered in a few days. The plate fit perfectly and now in use.