QUOTE (kikashi @ Oct 19 2009, 11:27 AM)

Thanks, all.
The Markins is significantly (about 50%) more expensive than either the RRS BH40 or the Acratech Ultimate. A search on eBay UK reveals no Linhof heads and they seem to be even more expensive retail than the M10.
Given current exchange rates, import duty, VAT and shipping charges, the RRS BH40 is pretty much the same price as the Acratech. I've never handled RRS stuff, but as I said before the Acratech levelling base is superbly made. Is there much to choose between those two ballheads? Which would you go for, and why?
I have a few specific questions which I hope you can answer. Sorry if they're rather elementary: I've not used this type of kit before.
- The Acratech L-plate (universal) is very expensive and looks rather unwieldy. If I get the Ultimate head, will it be compatible with the RRS L-plate on my 5d2?
- Is the RRS L-plate designed to be left on the camera permanently? Does it get in the way, or do you rapidly forget that it's there? Is it much of a hassle to attach/detach it?
- If I were to get the Acratech head and the RRS L-plate, would I need to buy anything else? Would I need a simple Acratech or RRS plate as well, for example to fit on a lens collar? If I would, is there anything to choose between the RRS and the Acratech plates?
Thanks in advance.
Jeremy
I originally bought the Acratech ballhead, which I really liked. Later I bought the RRS 55, which I like much better. I use it a lot for stitched panoramas. The rotating base is very smooth. The other benefit is that you can tilt the ball 90 degrees into a slot on the head and do vertical panoramas. I also recommend the lever clamp instead of the screw clamp. I had a screw clamp on my Acratech and I did not screw it down all the way one day and my Canon 1Ds Mark II fell into the Merced River and immediately washed down stream, never to be recovered. Fortunately, it was insured and replaced by the 5D and later 5D2 (wonderful camera). I replaced the screw clamp with an RRS lever clamp, and have not lost a camera since then.
If you like precision machining, you'll love the RRS 55. I like the fact that it is heavier than the Acratech (which is still an excellet ballhead).
Secondly, an RRS L-bracket is always on all my cameras. They never come off. In fact, I think that cameras look a little--undressed--without an L-bracket.
If you are using a long, heavy lens, you will also want to buy an RRS plate for the lens. Especially with today's sensors, you do not want a heavy load warping your lens mount. If you mount the lens on the camera, and the camera to the ballhead, any bump to the front of the lens is going to be multiplied by its length. Better to have the lens mounted to the ballhead.