Thanks for the reply. I do understand what you mean about the actual photos being the final judge of whether there is a problem, but I would like to know whether my equipment is performing as it should, or could I have got better performance for similar money.
It's mounted on the collar and everything is tightened up thoroughly. Like I said, without a basis for comparison I don't know whether my experience is to be expected or if it is below par.
Of course Live View magnifies the problem. That is the point in using it to demonstrate what I am seeing. But the thing is, I thought the idea of a tripod was to stabilise the system. Mine does not seem very stable. Peeping through a tiny viewfinder will not reveal these small problems, but when the image is viewed on a 40" 1920X1080 TV screen, which is how I view my pictures, any shake will be apparent.
I really did believe that with a tripod and head such as this I would have no trouble to manually focus on the moon. When I first tried I was horrified by the amount of shake. I didn't spend £375 on a support system and expect to see that. Shouldn't I be able to focus accurately on the moon with this kit, without having to guess how accurate my focus is? I don't think accurate manual focus on the moon is terribly easy through the viewfinder of a 1.6X crop body wth standard focus screen. Live View and 10X seems the obvious choice for making the task easy. It turned out not to be as easy as I hoped.
If my expectations were too high then fair enough. I'm just curious to know how other people find their gear to perform under similar conditions. Should I have bought an RSS head? Would it be any better? The Manfrotto blurb says it has a 2" ball. I don't know how on earth they measure it but my ball is nearer 1.25" diameter - nowhere near 2". I thought I was getting something roughly the equal of the RSS BH-55 head but with the hydrostatic operation putting it ahead of the game. If the RSS head is no better then I can't really expect more from my own head. If the RSS is noticeably better then I figure Manfrotto has sold me a pup. If performance is not on a par with a 2" head then I figure I've got justification to take it up with Manfrotto. If the performance is all I could hope for then I may as well be happy with what I've got.
It's all very well speculating on what should or shouldn't be. I don't want specualtion. I would like to know how other people find their support system performs. Is a Wimberley gimbal any better? How about RSS, Markins or Kirk, or even Benro? To make that judgement people will need to stick a 400mm lens on their tripod and use 10X Live View magnification to make the comparison. I'm not asking people to run out specially and perform the test. They should know, from their own experience whether this is normal or not.
I do have to say that I find I get better results from my 100-400 if I leave IS enabled when on the tripod. I know for long exposures that I can't get away with that, because the image does drift, but for short exposures - maybe 1/250 - 1/800 or so, IS does improve things. That appears to go against all common wisdom for this lens. At faster shutter speeds still, I guess the IS no longer serves a useful purpose, but it surely does no harm either. Since I'm typically shooting wildlife with this lens I do stick with shutter speeds above 1/250 if I can. If IS can do a better job than the tripod at stabilising the image then what use is the tripod, apart from in taking the load off my hands?
Maybe it is not the head as such but the mounting plate. I did ask on here I while ago whether to go for an RC2 or RC4 plate and the general concensus was that RC2 would be fine. Was that recommendation misguided, I wonder - https://photography-on-the.net …light=rc2+rc4+hydrostatic?