QUOTE(stever @ May 5 2007, 09:34 AM)
check out the RRS angle bracket plus their monopod solution with a quick-release clamp
depending on the situation, you can put an clamp directly on top of the monopod and just tilt the monopod back and forth
switching from vertical to horizontal is pretty quick with the angle bracket after a bit of practice, particularly with the quick-release clamp
when using a lens heavy enough to cause a balance problem, you can add a short rail to get the center of gravity directly over the monopod
I concur with Stever's recommendations. If you don't already have a monopod I would recommend checking out the
Feisol carbon fiber units. They are available on E-bay, but I purchased mine directly from Taiwan. It arrived in about a week and the shipping cost was very reasonable.
If you use a swivel or ball head on the monopod, the center of gravity becomes unbalanced when using the camera in the vertical format, and the L-bracket solves this problem. I went with the RSS L-bracket and their
monopod solution with the Manfrotto swivel. To save some money, I went with the cheapest Kirk clamp, which I find sufficient for monopod use. I have the RSS lever release clamp for my tripod ball head and it is very nice and quicker to use than the screw type clamps, but I thought it was overkill for the monopod.
Note that with the standard RSS mounting of the clamp on the monopod, the axis of the clamp is parallel to the axis of the lens, allowing the lens to be tilted upward or downward when using a lens with a tripod collar. With the camera mounted directly on the monopod, you can not use the swivel to go from horizontal to vertical but must use the L-bracket.
Bill