Sheetshooter wrote:My only concern is ANY variation of that dovetail style of quick-plate system irrespective of who it is made by and whether it screws or clamps.
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Seven grands worth of precision light-tight box - smashed and useless.
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The ambient heat caused the cold metal to heat and expand sufficiently to loosen the clamping of it all and it just slipped out on the polished metal surfaces.
A painful story indeed!
It's worth noting that good mounting plates these days have stop-screws on each end of the plate. They screw up into the ends to stop the plate sliding out. You can choose to put them in one end (allowing you to slide the plate in from the other end without opening the clamp fully) or both ends (requiring you to "top-load" the clamp).
RRS started off with a single screw into the right-hand side of their camera plates (to avoid accidents with portrait-mounted cameras), then Wimberley implemented the current system (which several years later RRS seems to have copied).
Clamps these days tend to have slots to allow the stop screw to move towards the middle slightly so your flexibility isn't impaired. Mind you, some plates don't have the stop screws, and you should consider this carefully when selecting the right plate for your equipment (especially for big telephotos)!
The C1 looks interesting, but at 994g it would have to be something I'd get a fair bit of use out of before I was going to carry it into the field. It will still require rail plates (e.g. RRS MPR) to get the entrance pupil of the lens properly positioned (at least for horizontal panos: for verticals I don't see how it could be done with this design).
For me the RRS PCL system combined with a ballhead seems to be a much more manageable system.
But maybe when Birddog eventually gets one he can show us how it's better.