You're mounting it using the tripod collar, right? If you have an Arca-Swiss type mount system, you might want to get the extended length plate and try sliding it back and forth until you find the center of balance. If you have a really light EOS (Rebel, etc.), it might not be counterbalancing the heavy lens enough.
You might want to think of upgrading to a pro level ball, like an Arca Swiss B1, etc. Or a Wimberly SideKick. Karen At 9:21 PM -0800 1/1/02, Gerry Kaslowski wrote: >I just picked up a Canon EF 100-400/4,5-5,6L IS USM. Great lens, but >heavier than my 75-300 IS. > >My problem is that I can't lock the head tight enough. I think the >solution is a ball head. I'm using a Bogen 3443 #441 carbon tripod with >the Bogen Magnesium 3D Head 3437. I've always used a 3D head, but I think >the 100-400 is overloading it. The head moves no matter how tight I crank. > * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
