----- Original Message ----- From: "Keith Green" <[EMAIL PROTECTED]> > 2.) Because it is a lever lock, instead of a knob, it tends to move when > clamping down. > > 3.) When I use the 100 USM Macro on its tripod mount, the housing for the > mounting plate fouls the power booster or battery pack on the camera body. > Another reason why I don't always use the tripod.
Hi Keith, The 308 head also uses a lever lock but does not give any problem with movement when clamped. I have used this with the 1v + booster + 28 - 70/2.8 all hanging off to the side for vertical shots. I have the RC head which uses the smaller rectangular QR plate. They can twist at times but generally handle the job and are small & easy to use. When I use certain lenses like the 70-200L IS and have the booster fitted, the lever lock for the QR fouls the booster and cannot actually be operated. For those lenses I reverse the plate on the lens and work with the head backwards - the lever faces forward instead of backwards. Gets around the problem. I'm hoping to get over to the US in the next year and will buy myself the Arca Swiss head and a full range of the Really Right Stuff plates to suit my gear. Thats the plan anyway. Regards, Tim www.timmunro.com.au * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
