It's often said that landscape photographers have all the time in the world to set up, compose and take a photo. That may be true, which is why we can get away with using low-speed, high-IQ equipment such as technical bodies, large format, tilt-shift lenses, pan-tilt heads and hybrid Canon-Zeiss-Sigma-Metabones-Sony Frankenstein setups.
But what is also true is that opportunities are few and far between. You can have a model pose more than once and adjust your lighting, lens or body settings, but there is only one sunrise and one sunset in a day, two high and two low tides in a day, and the same lunar conditions only come around once a month or so. If you need more than one of these to be ideal, the right conditions may only come around every few weeks or months. Add to this the fact that haze and cloud conditions often differ day by day (even the exact shape or placement of clouds) and that other things like foliage on trees, flowering plants and the exact angle of sunrise/sunset vary on an annual or twice-annual cycle and many shots will be once-in-a-lifetime opportunities.
Compounding this is the fact that there are often several great shots to be had from the same location at the same time - landscape and portrait orientation, sunrise hitting several peaks at the same time, telephoto and wide compositions, different focal lengths on the same mountain peak. Ideal sunrise and sunset lighting may only last a few minutes, and, considering that twilight shots may stretch into many seconds, or even minutes, there isn't time for a large number of shots.
To cover all these possibilities, it is very common to carry multiple lenses (sometimes with overlapping focal lengths) and multiple bodies on a shooting trip. What is not common is to bring more than one tripod - tripods are bulky and heavy, hard to carry on planes and difficult to carry more than one of on the same bag. But a full-size tripod, such as a RRS TVC-34L, is a very stable platform, fully capable of supporting more than one camera at the same time for anything other than minutes-long exposures or in high winds. Doubly so when the cameras are small, mirrorless Sony bodies or when the legs are not fully extended.
What seems to be lacking, though, is a means to attach more than one body to the tripod at the same time - for instance, a bar or wide platform with attachment points for two separate heads, such as a C1 Cube and a ballhead. This would allow the two cameras to be independently-orientable, so that you could have a telephoto shooting at a mountain peak while a UWA captures the entire valley lit up at dawn, or two separate telephotos aimed at two different peaks.
Does anyone have a solution for this? A custom metal bracket or something (preferably vibration-dampened so that shutter movements from one camera don't cause the other to vibrate)? Or is homebrew the only good solution?
On a related note, any way to hook up a remote release to trigger two cameras with different settings at the same time, short of unreliable radio remotes?