I bought the Canon 100-400mm f/4.5-5.6L Lens. I also have the Canon Rebel Xti. I was curious if that weight combined would be too heavy for my head piece on my tripod. Its from manfrotto: http://www.manfrotto.com/Jahia/site/manfrotto/cache/offonce/pid/2311?livid=80&lsf=80&child=2
I cant say for sure but id say yes, the max on that head is 2.5 lbs and on bhphoto.com the info says the lens is 3 lbs.
thats 2.5 kg not lbs so 5.6 lbs. The lens is 3 lbs and the camera is 18 oz. It may be enough, but with a $1300+ lens, I'd go with something more substantial. I have the 322RC2 head seen here. http://www.bhphotovideo.com/c/produ...rotto_322RC2_322RC2_Grip_Action_Ballhead.html It supports 11lbs and can be mounted in the same joystick position.