Is this what most sports shooters use under the tripod collar of the 300 2.8 IS?
http://www.bhphotovideo.com …oughType=accessory_detail![]()
I just mainly need support, I don't want the lens to fall off, and I want to preserve the paint on the bottom of the collar by not screwing in the monopod each time. I have the Manfrotto 680B monopod, will it support the 300 2.8? It supported the Sigma 120-300 2.8 just fine.


