Tom W wrote:
I'm not quite sold on the Wimberly, though I like it and it is on the short list. I just want to make sure that I have something that, when I lock it down, won't creep, drift, sag, or otherwise move. I've had some sag issues with heads that were carrying well below their rated weight.
Another reason I balk is that I'd heard from a couple of people that you should select a head with a capacity of 1.5X the actual weight of the equipment that you'll be putting on it. I really don't know if that's good advice or not, but it doesn't hurt to overbuild a bit.
If the 'package' (lens plus camera/grip, whatever) is balanced on the head, there should be very little concern for sag, droop, whatever from the head. My 501 has a very solid lockdown for pan/tilt.
I don't know about the design criteria for tripod heads, but for things like ladders the rated capacity is usually conservative - if it is rated at 200 pounds, it can handle 250 pounds. I understand overbuilding, perhaps to permit growth to a larger lens - but I think you've probably topped out unless you are thinking of procuring a Canon 1200mm.
But if you really want to bulk up, go for the 22 pound version:
http://www.bhphotovideo.com …ghType=categoryNavigation
It is still $100 cheaper than the Look At Me! Wimberley.
It's funny - a year ago, I wouldn't have taken a fluid head for free since it is only a 2-way head (same as the Wimberley), but now I find myself defending them against the highly hyped, highly priced, and much more flashy Wimberley. I guess I'm just more interested in results than looks.
Have Fun,